SettingsMeasuring instruments
Absorption wavemeter
The Absorption wavemeter is a simple device for the measurement of radio frequency energy at different frequencies.
The Absorption wavemeter is a simple device for the measurement of radio frequency energy at different frequencies.
Accelerograph
An accelerograph can be referred to as a strong motion seismograph, or simply as an earthquake accelerometer.
An accelerograph can be referred to as a strong motion seismograph, or simply as an earthquake accelerometer.
Acoustic location
Acoustic location is the science of using sound to determine the distance and direction of something.
Acoustic location is the science of using sound to determine the distance and direction of something.
Acoustic rheometer
An acoustic rheometer employs piezo-electric crystal that can easily launch a successive wave of extensions and contractions into the fluid.
An acoustic rheometer employs piezo-electric crystal that can easily launch a successive wave of extensions and contractions into the fluid.
Actigraphy
Actigraphy is a relatively non-invasive method of monitoring human rest/activity cycles.
Actigraphy is a relatively non-invasive method of monitoring human rest/activity cycles.
Air core gauge
An air core gauge is a specific type of rotary actuator in an analog display gauge that allows an indicator to rotate a full 360 degrees.
An air core gauge is a specific type of rotary actuator in an analog display gauge that allows an indicator to rotate a full 360 degrees.
Airspeed indicator
The airspeed indicator or airspeed gauge is an instrument used in an aircraft to display the craft's airspeed, typically in knots, to the pilot.
The airspeed indicator or airspeed gauge is an instrument used in an aircraft to display the craft's airspeed, typically in knots, to the pilot.
Alidade
An alidade (archaic forms include alhidade, alhidad, alidad) is a device that allows one to sight a distant object and use the line of sight to perform a task.
An alidade (archaic forms include alhidade, alhidad, alidad) is a device that allows one to sight a distant object and use the line of sight to perform a task.
Almucantar
An almucantar (also spelled almucantarat or almacantara) is a circle on the celestial sphere parallel to the horizon.
An almucantar (also spelled almucantarat or almacantara) is a circle on the celestial sphere parallel to the horizon.
Altimeter
An altimeter is an instrument used to measure the altitude of an object above a fixed level.
An altimeter is an instrument used to measure the altitude of an object above a fixed level.
Ampere balance
The ampere balance (also current balance or Kelvin balance) is an electromechanical apparatus used for the precise measurement of the SI unit of electric current, the ampere.
The ampere balance (also current balance or Kelvin balance) is an electromechanical apparatus used for the precise measurement of the SI unit of electric current, the ampere.
Analyser
An bharadwaj, also spelt analyzer, is a person or device that analyses given data.
An bharadwaj, also spelt analyzer, is a person or device that analyses given data.
Angle gauge
An angle gauge is a tool used by foresters to determine which trees to measure when using a variable radius plot design in forest inventory.
An angle gauge is a tool used by foresters to determine which trees to measure when using a variable radius plot design in forest inventory.
Annubar
An annubar is similar to a pitot tube used to measure the flow of gas or liquid in a pipe.
An annubar is similar to a pitot tube used to measure the flow of gas or liquid in a pipe.
Askania
Askania Cinetheodolite is a camera-based system that measures and records azimuth, elevation, and time data on 35mm film along with an image of a target.
Askania Cinetheodolite is a camera-based system that measures and records azimuth, elevation, and time data on 35mm film along with an image of a target.
Atmometer
The atmometer or evaporimeter is a scientific instrument used for measuring the rate of evaporation from a wet surface to the atmosphere.
The atmometer or evaporimeter is a scientific instrument used for measuring the rate of evaporation from a wet surface to the atmosphere.
Atomic dielectric resonance
Atomic Dielectric Resonance (ADR), is a recently patented investigative technique (US 6864826 B1) that can image inside materials (e.g.
Atomic Dielectric Resonance (ADR), is a recently patented investigative technique (US 6864826 B1) that can image inside materials (e.g.
Auncel
An auncel (from the Anglo-Fr. auncelle, a confused derivation from l'auncelle, Ital.
An auncel (from the Anglo-Fr. auncelle, a confused derivation from l'auncelle, Ital.
Automated analyser
An automated analyser is a medical laboratory instrument designed to measure different chemicals and other characteristics in a number of biological samples quickly, with minimal human assistance.
An automated analyser is a medical laboratory instrument designed to measure different chemicals and other characteristics in a number of biological samples quickly, with minimal human assistance.
Automated mineralogy
Automated mineralogy is a generic term describing a range of analytical solutions, areas of commercial enterprise, and a growing field of scientific research and engineering applications involvi...
Automated mineralogy is a generic term describing a range of analytical solutions, areas of commercial enterprise, and a growing field of scientific research and engineering applications involvi...
Auxanometer
An auxanometer (Gr. auxain, "to grow" + metron, "measure") is an apparatus for measuring increase or rate of growth in plants.
An auxanometer (Gr. auxain, "to grow" + metron, "measure") is an apparatus for measuring increase or rate of growth in plants.
Aviation transponder interrogation modes
An aviation transponder interrogation mode is the format of a sequence of pulses from an interrogating SSR radar, or similar system, and reply format usually referred to as a "Code" from a trans...
An aviation transponder interrogation mode is the format of a sequence of pulses from an interrogating SSR radar, or similar system, and reply format usually referred to as a "Code" from a trans...
AZUSA
AZUSA refers to a ground-based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center.
AZUSA refers to a ground-based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center.
Backstaff
The backstaff or back-quadrant is a navigational instrument that was used to measure the altitude of a celestial body, in particular the sun or moon.
The backstaff or back-quadrant is a navigational instrument that was used to measure the altitude of a celestial body, in particular the sun or moon.
Balancing machine
A balancing machine is a measuring tool used for balancing rotating machine parts such as rotors for electric motors, fans, turbines, disc brakes, disc drives, propellers and pumps.
A balancing machine is a measuring tool used for balancing rotating machine parts such as rotors for electric motors, fans, turbines, disc brakes, disc drives, propellers and pumps.
Bettsometer
A Bettsometer is a fabric degradation tester commonly used to measure or test the integrity of fabric coverings (and associated stitching) on aircraft and their wings.
A Bettsometer is a fabric degradation tester commonly used to measure or test the integrity of fabric coverings (and associated stitching) on aircraft and their wings.
Bevameter
A bevameter is a device used in terramechanics to measure the mechanical properties of soil.
A bevameter is a device used in terramechanics to measure the mechanical properties of soil.
Bolometer
A bolometer is a device for measuring the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent electrical resistance.
A bolometer is a device for measuring the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent electrical resistance.
Bone exercise monitor
A bone exercise monitor is an instrument which is used to measure and analyze the bone strengthening qualities of physical activity and to help in prevention of osteoporosis with physical activi...
A bone exercise monitor is an instrument which is used to measure and analyze the bone strengthening qualities of physical activity and to help in prevention of osteoporosis with physical activi...
Bull's eye level
A bull's eye level is a type of spirit level that allows for the leveling of planes in two dimensions - both the 'pitch' and 'roll' in nautical terms.
A bull's eye level is a type of spirit level that allows for the leveling of planes in two dimensions - both the 'pitch' and 'roll' in nautical terms.
Butyrometer
Butyrometer is a measuring instrument used to measure fat content in milk or milk products in general.
Butyrometer is a measuring instrument used to measure fat content in milk or milk products in general.
Calo tester
The Calo tester consists of a holder for the surface to be tested and a steel sphere of known diameter that is rotated against the surface by a rotating shaft connected to a motor whilst diamond...
The Calo tester consists of a holder for the surface to be tested and a steel sphere of known diameter that is rotated against the surface by a rotating shaft connected to a motor whilst diamond...
Calorimeter
A calorimeter is a device used for calorimetry, the science of measuring the heat of chemical reactions or physical changes as well as heat capacity.
A calorimeter is a device used for calorimetry, the science of measuring the heat of chemical reactions or physical changes as well as heat capacity.
Cam plastometer
The cam plastometer is a physical testing machine.
The cam plastometer is a physical testing machine.
Canadian Penning Trap Mass Spectrometer
The Canadian Penning Trap Mass Spectrometer (CPT) is one of the major pieces of experimental equipment that is installed on the ATLAS superconducting heavy-ion linac facility at the Physic...
The Canadian Penning Trap Mass Spectrometer (CPT) is one of the major pieces of experimental equipment that is installed on the ATLAS superconducting heavy-ion linac facility at the Physic...
Capacitance electroscope
A "capacitance electroscope", or "condenser electroscope" is a type of electroscope in which a capacitor is formed in the top plate connected to the sensing leaves, by adding another plate above...
A "capacitance electroscope", or "condenser electroscope" is a type of electroscope in which a capacitor is formed in the top plate connected to the sensing leaves, by adding another plate above...
Capacitance meter
A capacitance meter is a piece of electronic test equipment used to measure capacitance, mainly of discrete capacitors.
A capacitance meter is a piece of electronic test equipment used to measure capacitance, mainly of discrete capacitors.
Capacitance probe
Capacitance sensors (or Dielectric sensors) use capacitance to measure the dielectric permittivity of a surrounding medium.
Capacitance sensors (or Dielectric sensors) use capacitance to measure the dielectric permittivity of a surrounding medium.
Capacitive displacement sensor
Capacitive displacement sensors “are non-contact devices capable of high-resolution measurement of the position and/or change of position of any conductive target”.
Capacitive displacement sensors “are non-contact devices capable of high-resolution measurement of the position and/or change of position of any conductive target”.
Carey Foster bridge
In electronics, the Carey Foster bridge is a bridge circuit used to measure low resistances, or to measure small differences between two large resistances.
In electronics, the Carey Foster bridge is a bridge circuit used to measure low resistances, or to measure small differences between two large resistances.
Cathetometer
A cathetometer is an instrument for measuring vertical distances in cases where a scale cannot be placed very close to the points whose distance apart is desired.
A cathetometer is an instrument for measuring vertical distances in cases where a scale cannot be placed very close to the points whose distance apart is desired.
Cent-a-meter
The Cent-a-meter, known as the electrisave and the Owl in the UK, is an electricity usage monitor featuring an indoor wireless display.
The Cent-a-meter, known as the electrisave and the Owl in the UK, is an electricity usage monitor featuring an indoor wireless display.
Chemical field-effect transistor
ChemFET, or chemical field-effect transistor, is a type of a field-effect transistor acting as a chemical sensor.
ChemFET, or chemical field-effect transistor, is a type of a field-effect transistor acting as a chemical sensor.
Cheugugi
Cheugugiis the world first rain gauge which is invented and utilized by Joseon Dynasty of Korea.
Cheugugiis the world first rain gauge which is invented and utilized by Joseon Dynasty of Korea.
Chip log
A chip log, also called common log, ship log or just log, is a navigation tool used by mariners to estimate the speed of a vessel through water.
A chip log, also called common log, ship log or just log, is a navigation tool used by mariners to estimate the speed of a vessel through water.
CHN analyzer
A CHN Analyzer is a scientific instrument which can determine the elemental composition of a sample.
A CHN Analyzer is a scientific instrument which can determine the elemental composition of a sample.
Chorobates
A chorobates (Greek χωροβἀτης from khŏros; "place" + -batos, "going") was a kind of level used in classical antiquity.
A chorobates (Greek χωροβἀτης from khŏros; "place" + -batos, "going") was a kind of level used in classical antiquity.
Cinetheodolite
A cinetheodolite (a.k.a. kinetheodolite) is a photographic instrument for collection of trajectory data.
A cinetheodolite (a.k.a. kinetheodolite) is a photographic instrument for collection of trajectory data.
Clap-o-meter
A clap-o-meter, clapometer or applause meter is a measurement instrument that purports to measure and display the volume of clapping or applause made by a studio audience or an audie...
A clap-o-meter, clapometer or applause meter is a measurement instrument that purports to measure and display the volume of clapping or applause made by a studio audience or an audie...
Clarity meter
A clarity meter is an instrument used to measure the transparency of an object.
A clarity meter is an instrument used to measure the transparency of an object.
Class of accuracy in electrical measurements
In electrical engineering class of accuracy is a figure which represents the error tolerance of a measuring device.
In electrical engineering class of accuracy is a figure which represents the error tolerance of a measuring device.
Clifton nanolitre osmometer
A Clifton nanolitre osmometer is a device that allows the determination of the melting and freezing point of an aqueous solution using a sample size of only nanolitres.
A Clifton nanolitre osmometer is a device that allows the determination of the melting and freezing point of an aqueous solution using a sample size of only nanolitres.
Cobas Mira
The Roche Cobas Mira, now discontinued by Roche, is a benchtop, random access biochemistry analyzer.
The Roche Cobas Mira, now discontinued by Roche, is a benchtop, random access biochemistry analyzer.
Cold-Cranking Simulator
The cold-cranking simulator was designed as a method of determining the low temperature performance of lubricants, in the specific condition of "cold cranking" - ie starting a cold engine.
The cold-cranking simulator was designed as a method of determining the low temperature performance of lubricants, in the specific condition of "cold cranking" - ie starting a cold engine.
Constant fraction discriminator
A constant fraction discriminator (CFD) is an electronic signal processing device, designed to mimic the mathematical operation of finding a maximum of a pulse by finding the zero of its slope.
A constant fraction discriminator (CFD) is an electronic signal processing device, designed to mimic the mathematical operation of finding a maximum of a pulse by finding the zero of its slope.
Continuous Scan Laser Doppler Vibrometry (CSLDV)
Continuous Scan Laser Doppler Vibrometry (CSLDV) is a method of using a Laser Doppler Vibrometer (LDV) in which the laser beam is swept across the surface of a test subject to capture the motion...
Continuous Scan Laser Doppler Vibrometry (CSLDV) is a method of using a Laser Doppler Vibrometer (LDV) in which the laser beam is swept across the surface of a test subject to capture the motion...
Continuous scan laser Doppler vibrometry (CSLDV)
Continuous scan laser Doppler vibrometry is a method of using a laser Doppler vibrometer in which the laser beam is swept across the surface of a test subject to capture the motion of a surface ...
Continuous scan laser Doppler vibrometry is a method of using a laser Doppler vibrometer in which the laser beam is swept across the surface of a test subject to capture the motion of a surface ...
Coordinate-measuring machine
A coordinate measuring machine is a device for measuring the physical geometrical characteristics of an object.
A coordinate measuring machine is a device for measuring the physical geometrical characteristics of an object.
Cover meter
A cover meter is an instrument to locate rebars and measure the exact concrete cover.
A cover meter is an instrument to locate rebars and measure the exact concrete cover.
Creep-testing machine
A creep-testing machine measures the Creep of an object.
A creep-testing machine measures the Creep of an object.
Creepmeter
A creepmeter is an instrument that monitors the slow surface displacement of an active geologic fault in the earth.
A creepmeter is an instrument that monitors the slow surface displacement of an active geologic fault in the earth.
Cryogenic particle detectors
Cryogenic particle detectors are radiation sensors that operate at very low temperature, typically only a few degrees above absolute zero.
Cryogenic particle detectors are radiation sensors that operate at very low temperature, typically only a few degrees above absolute zero.
Current clamp
In electrical and electronic engineering, a current clamp or current probe is an electrical device having two jaws which open to allow clamping around an electrical conductor.
In electrical and electronic engineering, a current clamp or current probe is an electrical device having two jaws which open to allow clamping around an electrical conductor.
Cyanometer
A cyanometer (gr., cf. cyan)) is an instrument for measuring 'blueness', specifically the colour intensity of blue sky.
A cyanometer (gr., cf. cyan)) is an instrument for measuring 'blueness', specifically the colour intensity of blue sky.
Daly detector
A Daly detector is a gas phase ion detector that consists of a metal "doorknob", a scintillator (phosphor screen) and a photomultiplier.
A Daly detector is a gas phase ion detector that consists of a metal "doorknob", a scintillator (phosphor screen) and a photomultiplier.
DART ion source
DART (Direct Analysis in Real Time) is an atmospheric pressure ion source that instantaneously ionizes gases, liquids and solids in open air under ambient conditions.
DART (Direct Analysis in Real Time) is an atmospheric pressure ion source that instantaneously ionizes gases, liquids and solids in open air under ambient conditions.
Dasymeter
A dasymeter was meant initially as a device to demonstrate the buoyant effect of gases like air; as shown in the pictures on the right.
A dasymeter was meant initially as a device to demonstrate the buoyant effect of gases like air; as shown in the pictures on the right.
Data logger
A data logger is an electronic device that records data over time or in relation to location either with a built in instrument or sensor or via external instruments and sensors.
A data logger is an electronic device that records data over time or in relation to location either with a built in instrument or sensor or via external instruments and sensors.
Dead band
The dead band is the insensitivity or unresponsiveness of a sensor in a specific range of input signals.
The dead band is the insensitivity or unresponsiveness of a sensor in a specific range of input signals.
Deadweight tester
A dead weight tester apparatus uses known traceable weights to apply pressure to a fluid for checking the accuracy of readings from a pressure gauge.
A dead weight tester apparatus uses known traceable weights to apply pressure to a fluid for checking the accuracy of readings from a pressure gauge.
Declinometer
A declinometer is an instrument for measuring magnetic declination.
A declinometer is an instrument for measuring magnetic declination.
Densitometer
A densitometer is a device that measures the degree of darkness of a photographic or semitransparent material or of a reflecting surface.
A densitometer is a device that measures the degree of darkness of a photographic or semitransparent material or of a reflecting surface.
Dial (measurement)
A dial is generally a flat surface, circular or rectangular, with numbers or similar markings on it, used for displaying the setting or output of a timepiece, radio, clock, watch, or measuring i...
A dial is generally a flat surface, circular or rectangular, with numbers or similar markings on it, used for displaying the setting or output of a timepiece, radio, clock, watch, or measuring i...
Diffractometer
A diffractometer (pronunciation: di-"frak-'tä-m&-t&r) is a measuring instrument for analyzing the structure of a material from the scattering pattern produced when a beam of radiation or particl...
A diffractometer (pronunciation: di-"frak-'tä-m&-t&r) is a measuring instrument for analyzing the structure of a material from the scattering pattern produced when a beam of radiation or particl...
Digital storage oscilloscope
A digital storage oscilloscope is an oscilloscope which stores and analyses the signal digitally rather than using analogue techniques.
A digital storage oscilloscope is an oscilloscope which stores and analyses the signal digitally rather than using analogue techniques.
Dilatometer
A dilatometer is a scientific instrument that measures volume changes caused by a physical or chemical process.
A dilatometer is a scientific instrument that measures volume changes caused by a physical or chemical process.
Dioptra
A dioptra (διόπτρα) is a classical astronomical and surveying instrument, dating from the 3rd century BCE. The dioptra was a sighting tube or, alternatively, a rod with a sight at bot...
A dioptra (διόπτρα) is a classical astronomical and surveying instrument, dating from the 3rd century BCE. The dioptra was a sighting tube or, alternatively, a rod with a sight at bot...
Diptych
A diptych (; from the Greek δίπτυχον, di "two" + ptychē "fold") is any object with two flat plates attached at a hinge.
A diptych (; from the Greek δίπτυχον, di "two" + ptychē "fold") is any object with two flat plates attached at a hinge.
Disappearing filament pyrometer
The disappearing filament pyrometer is an optical pyrometer, in which comparison is made between two bright objects to determine temperature.
The disappearing filament pyrometer is an optical pyrometer, in which comparison is made between two bright objects to determine temperature.
Disdrometer
A disdrometer is an instrument used to measure the drop size distribution and velocity of falling hydrometeors.
A disdrometer is an instrument used to measure the drop size distribution and velocity of falling hydrometeors.
Distortion meter
A distortion meter is a type of electronic test equipment used to determine specific frequencies that cause distortion in electronic devices.
A distortion meter is a type of electronic test equipment used to determine specific frequencies that cause distortion in electronic devices.
Distortionmeter
Distortionmeter (or more precisely distortion factor meter) is an electronic measuring instrument which displays the amount of distortion added to the original signal by an electronic circuit.
Distortionmeter (or more precisely distortion factor meter) is an electronic measuring instrument which displays the amount of distortion added to the original signal by an electronic circuit.
Distributed temperature sensing
Distributed temperature sensing systems (DTS) are optoelectronic devices which measure temperatures by means of optical fibres functioning as linear sensors.
Distributed temperature sensing systems (DTS) are optoelectronic devices which measure temperatures by means of optical fibres functioning as linear sensors.
Dividing engine
A dividing engine is a device specifically employed to mark graduations on measuring instruments.
A dividing engine is a device specifically employed to mark graduations on measuring instruments.
DP cell
A DP cell is a device that measures the differential pressure between two inputs.
A DP cell is a device that measures the differential pressure between two inputs.
Drawdown card
Drawdown cards are used for testing paints and coatings through wet film preparation.
Drawdown cards are used for testing paints and coatings through wet film preparation.
Drosometer
A drosometer (from Classical Greek, drosos, dew +, metron, measure) is an apparatus for measuring the quantity of dew formed in a unit of time per unit area of surface.
A drosometer (from Classical Greek, drosos, dew +, metron, measure) is an apparatus for measuring the quantity of dew formed in a unit of time per unit area of surface.
Du Noüy ring method
The du Noüy ring method is one technique by which the surface tension of a liquid can be measured.
The du Noüy ring method is one technique by which the surface tension of a liquid can be measured.
Dual-energy X-ray absorptiometry
Dual-energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD).
Dual-energy X-ray absorptiometry (DXA, previously DEXA) is a means of measuring bone mineral density (BMD).
Dynamometer
A dynamometer or "dyno" for short, is a device for measuring force, moment of force (torque), or power.
A dynamometer or "dyno" for short, is a device for measuring force, moment of force (torque), or power.
Ecotracer
Ecotracer is an acoustic locator that was used to determining the presence and position of ships in fog.
Ecotracer is an acoustic locator that was used to determining the presence and position of ships in fog.
Electrical conductivity meter
An electrical conductivity meter measures the electrical conductivity in a solution.
An electrical conductivity meter measures the electrical conductivity in a solution.
Electricity meter
An electricity meter or energy meter is a device that measures the amount of electric energy consumed by a residence, business, or an electrically powered device.
An electricity meter or energy meter is a device that measures the amount of electric energy consumed by a residence, business, or an electrically powered device.
Electrochemical gas sensor
Electrochemical gas sensors are gas detectors that measure the concentration of a target gas by oxidizing or reducing the target gas at an electrode and measuring the resulting current.
Electrochemical gas sensors are gas detectors that measure the concentration of a target gas by oxidizing or reducing the target gas at an electrode and measuring the resulting current.
Electromagnetic oscillograph
An electromagnetic oscillograph is an oscillograph which measures variations of electric current by having it go through a magnetic coil.
An electromagnetic oscillograph is an oscillograph which measures variations of electric current by having it go through a magnetic coil.
Electrometer
An electrometer is an electrical instrument for measuring electric charge or electrical potential difference.
An electrometer is an electrical instrument for measuring electric charge or electrical potential difference.
Electron capture detector
An electron capture detector is a device for detecting atoms and molecules in a gas through the attachment of electrons via electron capture ionization.
An electron capture detector is a device for detecting atoms and molecules in a gas through the attachment of electrons via electron capture ionization.
Electron multiplier
An electron multiplier is a vacuum-tube structure that multiplies incident charges.
An electron multiplier is a vacuum-tube structure that multiplies incident charges.
Electroscope
An electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body.
An electroscope is an early scientific instrument that is used to detect the presence and magnitude of electric charge on a body.
Electrostatic separator
An electrostatic separator is a device for separating particles by mass in a low energy charged beam.
An electrostatic separator is a device for separating particles by mass in a low energy charged beam.
Electrostatic voltmeter
Electrostatic Voltmeter can refer to an electrostatic charge meter, known also as Surface DC Voltmeter, or to an electrical potential measuring voltmeter, traditionally called Electrostatic Volt...
Electrostatic Voltmeter can refer to an electrostatic charge meter, known also as Surface DC Voltmeter, or to an electrical potential measuring voltmeter, traditionally called Electrostatic Volt...
Energy analyser
An instrument for measuring various parameters of an electrical power distribution system is often called an energy analyser.
An instrument for measuring various parameters of an electrical power distribution system is often called an energy analyser.
Energy-dispersive X-ray spectroscopy
Energy-dispersive X-ray spectroscopy is an analytical technique used for the elemental analysis or chemical characterization of a sample.
Energy-dispersive X-ray spectroscopy is an analytical technique used for the elemental analysis or chemical characterization of a sample.
Eudiometer
A eudiometer is a laboratory device that measures the change in volume of a gas mixture following a physical or chemical change.
A eudiometer is a laboratory device that measures the change in volume of a gas mixture following a physical or chemical change.
Explosimeter
An explosimeter is a device which is used to measure the amount of combustible gases present in a sample.
An explosimeter is a device which is used to measure the amount of combustible gases present in a sample.
Field strength meter
In telecommunications, field strength meter is a measuring device which measures the electric field caused by a transmitter.
In telecommunications, field strength meter is a measuring device which measures the electric field caused by a transmitter.
Filar micrometer
A filar micrometer is a device used in astronomical telescopes for astrometry measurements.
A filar micrometer is a device used in astronomical telescopes for astrometry measurements.
Filter fluorometer
A filter fluorometer is a type of fluorometer that may be employed in fluorescence spectroscopy.
A filter fluorometer is a type of fluorometer that may be employed in fluorescence spectroscopy.
Flight instruments
Flight instruments are the instruments in the cockpit of an aircraft that provide the pilot with information about the flight situation of that aircraft, such as altitude, speed and direction.
Flight instruments are the instruments in the cockpit of an aircraft that provide the pilot with information about the flight situation of that aircraft, such as altitude, speed and direction.
Force gauge
A force gauge (also force gage) is measuring instrument used across all industries to measure the force during a push or pull test.
A force gauge (also force gage) is measuring instrument used across all industries to measure the force during a push or pull test.
Ford viscosity cup
The Ford viscosity cup is a simple gravity device that permits the timed flow of a known volume of liquid passing through an orifice located at the bottom.
The Ford viscosity cup is a simple gravity device that permits the timed flow of a known volume of liquid passing through an orifice located at the bottom.
Formazine
Formazine is a suspension made by mixing together solutions of 5 g/L hydrazine sulfate and 50 g/L hexamethylenetetramine with ultra pure water.
Formazine is a suspension made by mixing together solutions of 5 g/L hydrazine sulfate and 50 g/L hexamethylenetetramine with ultra pure water.
Foucault knife-edge test
The Foucault knife-edge test was described in 1858 by French physicist Léon Foucault to measure conic shapes of optical mirrors, with error margins measurable in fractions of wavelengths of ligh...
The Foucault knife-edge test was described in 1858 by French physicist Léon Foucault to measure conic shapes of optical mirrors, with error margins measurable in fractions of wavelengths of ligh...
Fourier transform ion cyclotron resonance
Fourier transform ion cyclotron resonance mass spectrometry, also known as Fourier transform mass spectrometry, is a type of mass analyzer (or mass spectrometer) for determining the mass-t...
Fourier transform ion cyclotron resonance mass spectrometry, also known as Fourier transform mass spectrometry, is a type of mass analyzer (or mass spectrometer) for determining the mass-t...
Frequency domain sensor
Frequency domain (FD) sensor is an instrument developed for measuring soil moisture content.
Frequency domain (FD) sensor is an instrument developed for measuring soil moisture content.
Gardon gauge
A Gardon gauge or Circular-foil gauge is a heat flux sensor primarily intended for the measurement of high intensity radiation.
A Gardon gauge or Circular-foil gauge is a heat flux sensor primarily intended for the measurement of high intensity radiation.
Gas chromatography
Gas chromatography, is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition.
Gas chromatography, is a common type of chromatography used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition.
Gas collecting tube
The characterization gas collecting tube describes an oblong gas-tight container with one valve at either end.
The characterization gas collecting tube describes an oblong gas-tight container with one valve at either end.
Geiger-Müller tube
A Geiger–Müller tube (or GM tube) is the sensing element of a Geiger counter instrument that can detect a single particle of ionizing radiation, and typically produce an audible click for each.
A Geiger–Müller tube (or GM tube) is the sensing element of a Geiger counter instrument that can detect a single particle of ionizing radiation, and typically produce an audible click for each.
Geiger–Müller tube
A Geiger–Müller tube (or GM tube) is the sensing element of a Geiger counter instrument that can detect a single particle of ionizing radiation, and typically produce an audible click for each.
A Geiger–Müller tube (or GM tube) is the sensing element of a Geiger counter instrument that can detect a single particle of ionizing radiation, and typically produce an audible click for each.
Glossmeter
This has lead to the development of numerous International Standards that define the methodology and technical specifications of an instrument, a Glossmeter, that can be used for gloss measurem...
This has lead to the development of numerous International Standards that define the methodology and technical specifications of an instrument, a Glossmeter, that can be used for gloss measurem...
Gonioreflectometer
A Gonioreflectometer is a device for measuring a bidirectional reflectance distribution function.
A Gonioreflectometer is a device for measuring a bidirectional reflectance distribution function.
Gouy balance
The Gouy balance, invented by Louis Georges Gouy, is a device for measuring the magnetic susceptibility.
The Gouy balance, invented by Louis Georges Gouy, is a device for measuring the magnetic susceptibility.
Gradiometer
A gradiometer measures the gradient (numerical rate of change) of a physical quantity, such as a magnetic field or gravity.
A gradiometer measures the gradient (numerical rate of change) of a physical quantity, such as a magnetic field or gravity.
Grid dip oscillator
Grid dip oscillator (GDO), also called grid dip meter, dip meter, dipmeter, or just dipper, is a measuring instrument to measure resonant frequency of radio frequen...
Grid dip oscillator (GDO), also called grid dip meter, dip meter, dipmeter, or just dipper, is a measuring instrument to measure resonant frequency of radio frequen...
Grindometer
A grindometer is a device used to measure the particle size of suspensions, typically inks such as those used in printing, or paints.
A grindometer is a device used to measure the particle size of suspensions, typically inks such as those used in printing, or paints.
Hand compass
A hand compass is a term for any compact magnetic compass capable of one-hand use and fitted with a sighting device to record a precise bearing or azimuth to a given target or to determine a loc...
A hand compass is a term for any compact magnetic compass capable of one-hand use and fitted with a sighting device to record a precise bearing or azimuth to a given target or to determine a loc...
Hedonometer
A hedonometer or hedonimeter is a device used to gauge happiness or pleasure.
A hedonometer or hedonimeter is a device used to gauge happiness or pleasure.
Hegman gauge
A Hegman gauge, sometimes referred to as a grind gauge or grindometer, is a device used to determine how finely ground are the particles of pigment dispersed in a sample of paint.
A Hegman gauge, sometimes referred to as a grind gauge or grindometer, is a device used to determine how finely ground are the particles of pigment dispersed in a sample of paint.
Heliometer
Heliometer (from Greek sun and measure) is an instrument originally designed for measuring the variation of the sun's diameter at different seasons of the year, but applied now to the mo...
Heliometer (from Greek sun and measure) is an instrument originally designed for measuring the variation of the sun's diameter at different seasons of the year, but applied now to the mo...
Home energy monitor
A home energy monitor provides prompt, convenient feedback on electrical or other energy use.
A home energy monitor provides prompt, convenient feedback on electrical or other energy use.
Hook gauge evaporimeter
A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation.
A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation.
Hubometer
A hubometer (hub, center of a wheel + -ometer, measure of), or hubodometer or simply hubo, is a device mounted on the axle of an automobile or other vehicle that measures dis...
A hubometer (hub, center of a wheel + -ometer, measure of), or hubodometer or simply hubo, is a device mounted on the axle of an automobile or other vehicle that measures dis...
Huntly D. Millar
Huntly D. Millar, founder and CEO of Millar Instruments, Inc. was awarded the Laufman-Greatbatch Prize from the Association for the Advancement of Medical Instrumentation (AAMI) in 2001 for his...
Huntly D. Millar, founder and CEO of Millar Instruments, Inc. was awarded the Laufman-Greatbatch Prize from the Association for the Advancement of Medical Instrumentation (AAMI) in 2001 for his...
Hydrometer
A hydrometer is an instrument used to measure the specific gravity of liquids; that is, the ratio of the density of the liquid to the density of water.
A hydrometer is an instrument used to measure the specific gravity of liquids; that is, the ratio of the density of the liquid to the density of water.
Hydroxyl tagging velocimetry
Hydroxyl tagging velocimetry is a velocimetry method used in humid air flows.
Hydroxyl tagging velocimetry is a velocimetry method used in humid air flows.
Impedance cardiography
Impedance cardiography is a plethysmography technique of using sensors to detect the properties of the blood flow in the thorax.
Impedance cardiography is a plethysmography technique of using sensors to detect the properties of the blood flow in the thorax.
Inclinometer
An inclinometer or clinometer is an instrument for measuring angles of slope, elevation or depression of an object with respect to gravity.
An inclinometer or clinometer is an instrument for measuring angles of slope, elevation or depression of an object with respect to gravity.
Infrared gas analyzer
An infrared gas analyzer measures randeness trace gases by determining the absorption of an emitted infrared light source through a certain air sample.
An infrared gas analyzer measures randeness trace gases by determining the absorption of an emitted infrared light source through a certain air sample.
Infrared multiphoton dissociation
Infrared multiphoton dissociation (IRMPD) is a technique used in mass spectrometry to fragment molecules in the gas phase usually for structural analysis of the original (parent) molecule.
Infrared multiphoton dissociation (IRMPD) is a technique used in mass spectrometry to fragment molecules in the gas phase usually for structural analysis of the original (parent) molecule.
Inkometer
An inkometer is a specialized measuring instrument used by the printing industry to measure the "tack" (adhesiveness) of an ink with the roller system on an offset press.
An inkometer is a specialized measuring instrument used by the printing industry to measure the "tack" (adhesiveness) of an ink with the roller system on an offset press.
Instrument error
Instrument error refers to the combined accuracy and precision of a measuring instrument, or the difference between the actual value and the value indicated by the instrument (error).
Instrument error refers to the combined accuracy and precision of a measuring instrument, or the difference between the actual value and the value indicated by the instrument (error).
Integrating ADC
An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator.
An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator.
Ion drift meter
An ion drift meter is a device used to measure the velocity of individual ions in the area of a spacecraft.
An ion drift meter is a device used to measure the velocity of individual ions in the area of a spacecraft.
ISFET
An ISFET is an ion-sensitive field-effect transistor used for measuring ion concentrations in solution; when the ion concentration changes, the current through the transistor will change accordingly.
An ISFET is an ion-sensitive field-effect transistor used for measuring ion concentrations in solution; when the ion concentration changes, the current through the transistor will change accordingly.
ISFET electrode
An ISFET is an ion-sensitive field-effect transistor used for measuring ion concentrations in solution; when the ion concentration (such as H+, see pH scale) changes, the current through t...
An ISFET is an ion-sensitive field-effect transistor used for measuring ion concentrations in solution; when the ion concentration (such as H+, see pH scale) changes, the current through t...
ISFET pH electrode
An ISFET is an ion-sensitive field-effect transistor used for measuring ion concentrations in solution; when the ion concentration (such as H+, see pH scale) changes, the current through t...
An ISFET is an ion-sensitive field-effect transistor used for measuring ion concentrations in solution; when the ion concentration (such as H+, see pH scale) changes, the current through t...
Kamal (navigation)
A kamal is a celestial navigation device that determines latitude.
A kamal is a celestial navigation device that determines latitude.
Karatmeter
The Karatmeter is a scientific device which uses X-rays to give an exact reading of the purity of gold.
The Karatmeter is a scientific device which uses X-rays to give an exact reading of the purity of gold.
Katharometer
A katharometer is a thermal conductivity device for determining one gas in a binary or pseudo-binary mixture.
A katharometer is a thermal conductivity device for determining one gas in a binary or pseudo-binary mixture.
Kelvin bridge
A Kelvin bridge (also called a Kelvin double bridge and in some countries a Thomson bridge) is a measuring instrument invented by William Thomson, 1st Baron Kelvin.
A Kelvin bridge (also called a Kelvin double bridge and in some countries a Thomson bridge) is a measuring instrument invented by William Thomson, 1st Baron Kelvin.
Kelvin-Varley divider
The Kelvin-Varley divider uses a clever iterated scheme.
The Kelvin-Varley divider uses a clever iterated scheme.
Kinetic Inductance Detector
The Kinetic Inductance Detector - also known as the Microwave Kinetic Inductance Detector - is a type of superconducting photon detector first developed by scientists at the California Institute...
The Kinetic Inductance Detector - also known as the Microwave Kinetic Inductance Detector - is a type of superconducting photon detector first developed by scientists at the California Institute...
Kinetic inductance detector
The kinetic inductance detector — also known as a microwave kinetic inductance detector — is a type of superconducting photon detector first developed by scientists at the California Insti...
The kinetic inductance detector — also known as a microwave kinetic inductance detector — is a type of superconducting photon detector first developed by scientists at the California Insti...
Koenig's manometric flame apparatus
Koenig's manometric flame apparatus was a laboratory instrument invented in 1862 by the German physicist Rudolph Koenig, and used to visualize sound waves.
Koenig's manometric flame apparatus was a laboratory instrument invented in 1862 by the German physicist Rudolph Koenig, and used to visualize sound waves.
Kofler bench
A Kofler bench or Kofler hot-stage microscope is a metal strip with a temperature gradient (range room temperature to 300°C).
A Kofler bench or Kofler hot-stage microscope is a metal strip with a temperature gradient (range room temperature to 300°C).
Langmuir probe
A Langmuir probe is a device named after Nobel Prize winning physicist Irving Langmuir, used to determine the electron temperature, electron density, and electric potential of a plasma.
A Langmuir probe is a device named after Nobel Prize winning physicist Irving Langmuir, used to determine the electron temperature, electron density, and electric potential of a plasma.
Laser beam profiler
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path.
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path.
Laser Doppler vibrometer
A laser Doppler vibrometer (LDV) is a scientific instrument that is used to make non-contact vibration measurements of a surface.
A laser Doppler vibrometer (LDV) is a scientific instrument that is used to make non-contact vibration measurements of a surface.
Laser surface velocimeter
A laser surface velocimeter is a non-contact optical sensor measuring velocity and length on moving surfaces.
A laser surface velocimeter is a non-contact optical sensor measuring velocity and length on moving surfaces.
Laser-based angle resolved photoemission spectroscopy
Photoemission spectroscopy is a very powerful and sensitive experimental technique to study surface physics.
Photoemission spectroscopy is a very powerful and sensitive experimental technique to study surface physics.
Laser-based angle-resolved photoemission spectroscopy
Photoemission spectroscopy is a very powerful and sensitive experimental technique to study surface physics.
Photoemission spectroscopy is a very powerful and sensitive experimental technique to study surface physics.
LCR meter
A LCR meter (Inductance (L), Capacitance (C), and Resistance (R)) is a piece of electronic test equipment used to measure the inductance, capacitance and, resistance of a component.
A LCR meter (Inductance (L), Capacitance (C), and Resistance (R)) is a piece of electronic test equipment used to measure the inductance, capacitance and, resistance of a component.
Level staff
A level staff, also called levelling rod, is a graduated wooden or aluminum rod, the use of which permits the determination of differences in elevation.
A level staff, also called levelling rod, is a graduated wooden or aluminum rod, the use of which permits the determination of differences in elevation.
Levelling rod
A level staff, also called levelling rod, is a graduated wooden or aluminum rod, the use of which permits the determination of differences in elevation.
A level staff, also called levelling rod, is a graduated wooden or aluminum rod, the use of which permits the determination of differences in elevation.
Lippmann electrometer
A Lippmann electrometer is a device for detecting small rushes of electric current and was invented by Gabriel Lippmann.
A Lippmann electrometer is a device for detecting small rushes of electric current and was invented by Gabriel Lippmann.
Logic probe
A logic probe is a hand-held pen-like test probe used for analyzing and troubleshooting the logical states (Boolean 0 or 1) of a digital circuit.
A logic probe is a hand-held pen-like test probe used for analyzing and troubleshooting the logical states (Boolean 0 or 1) of a digital circuit.
Lysimeter
A lysimeter is a measuring device which can be used to measure the amount of actual evapotranspiration which is released by plants, usually crops or trees.
A lysimeter is a measuring device which can be used to measure the amount of actual evapotranspiration which is released by plants, usually crops or trees.
Machmeter
A Machmeter is an aircraft pitot-static system flight instrument that shows the ratio of the true airspeed to the speed of sound, a dimensionless quantity called Mach number.
A Machmeter is an aircraft pitot-static system flight instrument that shows the ratio of the true airspeed to the speed of sound, a dimensionless quantity called Mach number.
Macrometer
A macrometer is an instrument for measuring the size and distance of distant objects.
A macrometer is an instrument for measuring the size and distance of distant objects.
Magnetic level gauge
A magnetic level gauge is used to measure the level of fluids.
A magnetic level gauge is used to measure the level of fluids.
Magnetic tweezers
A magnetic tweezer is a scientific instrument for exerting and measuring forces on magnetic particles using a magnetic field gradient.
A magnetic tweezer is a scientific instrument for exerting and measuring forces on magnetic particles using a magnetic field gradient.
Magnetometer
A magnetometer is a measuring instrument used to measure the strength or direction of magnetic fields.
A magnetometer is a measuring instrument used to measure the strength or direction of magnetic fields.
Marine sandglass
Marine sandglass, is an ancient marine instrument employed to measure (or rather estimate) the time at sea when used as a 30 minute hourglass.
Marine sandglass, is an ancient marine instrument employed to measure (or rather estimate) the time at sea when used as a 30 minute hourglass.
Mass flow controller
A mass flow controller (MFC) is a device used to measure and control the flow of fluids and gases.
A mass flow controller (MFC) is a device used to measure and control the flow of fluids and gases.
Mass interconnect
Mass interconnect systems act as the connector interface between test instruments (PXI, VXI, LXI, GPIB, SCXI, & PCI) and devices/units under test (D/UUT).
Mass interconnect systems act as the connector interface between test instruments (PXI, VXI, LXI, GPIB, SCXI, & PCI) and devices/units under test (D/UUT).
Mass spectrometry
Mass spectrometry is an analytical technique that measures the mass-to-charge ratio of charged particles.
Mass spectrometry is an analytical technique that measures the mass-to-charge ratio of charged particles.
Measuring instrument
Measuring instruments, and formal test methods which define the instrument's use, are the means by which these relations of numbers are obtained.
Measuring instruments, and formal test methods which define the instrument's use, are the means by which these relations of numbers are obtained.
Megohmmeter
An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current.
An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current.
Metal detector
A metal detector is a device which responds to metal that may not be readily apparent.
A metal detector is a device which responds to metal that may not be readily apparent.
Methanometer
A methanometer is an instrument used to measure methane gas in the air of a mine.
A methanometer is an instrument used to measure methane gas in the air of a mine.
Micramperimeter
A micramperimeter is a measuring instrument that detects metals in substances through the process of oxidation and reduction.
A micramperimeter is a measuring instrument that detects metals in substances through the process of oxidation and reduction.
Microprobe
A microprobe is an instrument that applies a stable and well-focused beam of charged particles (electrons or ions) to a sample.
A microprobe is an instrument that applies a stable and well-focused beam of charged particles (electrons or ions) to a sample.
Microwave power meter
A microwave power meter is an instrument which measures the electrical power at microwave frequencies.
A microwave power meter is an instrument which measures the electrical power at microwave frequencies.
Millimeter wave scanner
A millimeter wave scanner is a whole–body imaging device used for detecting objects concealed underneath a person’s clothing.
A millimeter wave scanner is a whole–body imaging device used for detecting objects concealed underneath a person’s clothing.
Mirror galvanometer
A mirror galvanometer is a mechanical meter that senses electric current, except that instead of moving a needle, it moves a mirror.
A mirror galvanometer is a mechanical meter that senses electric current, except that instead of moving a needle, it moves a mirror.
Mixed-domain oscilloscopes
A Mixed-domain oscilloscope is a type of electronic test equipment with the ability to capture time-correlated analog, digital and RF signals for a complete system view of the device under test.
A Mixed-domain oscilloscope is a type of electronic test equipment with the ability to capture time-correlated analog, digital and RF signals for a complete system view of the device under test.
Multimeter
A multimeter or a multitester, also known as a VOM, is an electronic measuring instrument that combines several measurement functions in one unit.
A multimeter or a multitester, also known as a VOM, is an electronic measuring instrument that combines several measurement functions in one unit.
Murray loop bridge
Murrai loop bridge is a bridge circuit used for locating faults in underground or underwater cables.
Murrai loop bridge is a bridge circuit used for locating faults in underground or underwater cables.
Near-field scanner
Electromagnetic near-field scanner is a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near-field ...
Electromagnetic near-field scanner is a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near-field ...
Nephelometer
A nephelometer is stationary or portable instrument for measuring suspended particulates in a liquid or gas colloid.
A nephelometer is stationary or portable instrument for measuring suspended particulates in a liquid or gas colloid.
Network analyzer (electrical)
A network analyzer is an instrument that measures the network parameters of electrical networks.
A network analyzer is an instrument that measures the network parameters of electrical networks.
Nilometer
A Nilometer was a means (typically a structure) of measuring the River Nile's clarity and for measuring the water level of the Nile river during the annual flood season.
A Nilometer was a means (typically a structure) of measuring the River Nile's clarity and for measuring the water level of the Nile river during the annual flood season.
Nonintrusive load monitoring
Nonintrusive Load Monitoring (NILM), or Nonintrusive Appliance Load Monitoring, is a process for analyzing changes in the voltage and current going into a house and deducing what appliances are ...
Nonintrusive Load Monitoring (NILM), or Nonintrusive Appliance Load Monitoring, is a process for analyzing changes in the voltage and current going into a house and deducing what appliances are ...
Octant (instrument)
The octant, also called reflecting quadrant, is a measuring instrument used primarily in navigation.
The octant, also called reflecting quadrant, is a measuring instrument used primarily in navigation.
Odometer
An odometer or odograph is an instrument that indicates distance traveled by a vehicle, such as a bicycle or automobile.
An odometer or odograph is an instrument that indicates distance traveled by a vehicle, such as a bicycle or automobile.
Ohmer fare register
The Ohmer fare register was, in various models, a mechanical device for registering and recording the fares of passengers on streetcars, buses and taxis in the early 20th century.
The Ohmer fare register was, in various models, a mechanical device for registering and recording the fares of passengers on streetcars, buses and taxis in the early 20th century.
Open Metering System
The Open Metering System OMS stands for a manufacturer and utilities independent standardization for Meter-Bus based communication between utility meters (electricity, gas, water, district heat...
The Open Metering System OMS stands for a manufacturer and utilities independent standardization for Meter-Bus based communication between utility meters (electricity, gas, water, district heat...
Operational instruments of the Royal Observer Corps
The Royal Observer Corps was a civil defence organisation operating in the United Kingdom between October 1925 and 31 December 1995, when the Corps' civilian volunteers were stood down.
The Royal Observer Corps was a civil defence organisation operating in the United Kingdom between October 1925 and 31 December 1995, when the Corps' civilian volunteers were stood down.
Optical attenuator
An optical attenuator is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber.
An optical attenuator is a device used to reduce the power level of an optical signal, either in free space or in an optical fiber.
Optical dilatometer
An optical dilatometer is a non-contact device able to measure thermal expansions or sintering kinetics of any kind of materials, unlike traditional push rod dilatometer, it can push up to the d...
An optical dilatometer is a non-contact device able to measure thermal expansions or sintering kinetics of any kind of materials, unlike traditional push rod dilatometer, it can push up to the d...
Oscillating U-tube
The oscillating U-tube is a technique to determine the density of liquids and gases based on an electronic measurement of the frequency of oscillation, from which the density value is calculated.
The oscillating U-tube is a technique to determine the density of liquids and gases based on an electronic measurement of the frequency of oscillation, from which the density value is calculated.
Oscillograph
An oscillograph is an instrument for measuring alternating or varying electric current in terms of current and voltage.
An oscillograph is an instrument for measuring alternating or varying electric current in terms of current and voltage.
Oscilloscope
An oscilloscope, previously called an oscillograph, and informally known as a scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscop...
An oscilloscope, previously called an oscillograph, and informally known as a scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscop...
Osmometer
An osmometer is a device for measuring the osmotic strength of a solution, colloid, or compound.
An osmometer is a device for measuring the osmotic strength of a solution, colloid, or compound.
Overflow can
An overflow can is an object (likely a can) that has a spiral tubing out of the side.
An overflow can is an object (likely a can) that has a spiral tubing out of the side.
Ozone monitor
An ozone monitor is electronic equipment that monitors for ozone concentrations in the air.
An ozone monitor is electronic equipment that monitors for ozone concentrations in the air.
Peak meter
A peak meter is a type of measuring instrument that indicates visually the instantaneous level of an audio signal that is passing through it (a sound level meter).
A peak meter is a type of measuring instrument that indicates visually the instantaneous level of an audio signal that is passing through it (a sound level meter).
Pedometer
A pedometer is a device, usually portable and electronic or electromechanical, that counts each step a person takes by detecting the motion of the person's hips.
A pedometer is a device, usually portable and electronic or electromechanical, that counts each step a person takes by detecting the motion of the person's hips.
Pelorus (instrument)
In appearance and use, a pelorus resembles a compass or compass repeater, with sighting vanes or a sighting telescope attached, but it has no directive properties.
In appearance and use, a pelorus resembles a compass or compass repeater, with sighting vanes or a sighting telescope attached, but it has no directive properties.
Penetrometer
A penetrometer is a device to test the strength of a material such as soil.
A penetrometer is a device to test the strength of a material such as soil.
Penning trap
Penning traps are devices for the storage of charged particles using a homogeneous static magnetic field and a spatially inhomogeneous static electric field.
Penning traps are devices for the storage of charged particles using a homogeneous static magnetic field and a spatially inhomogeneous static electric field.
Pensky-Martens closed cup
In the Pensky-Martens closed cup flash point test, a brass test cup is filled with a test specimen and fitted with a cover.
In the Pensky-Martens closed cup flash point test, a brass test cup is filled with a test specimen and fitted with a cover.
Pensky-Martens closed-cup test
In the Pensky–Martens closed-cup flash-point test, a brass test cup is filled with a test specimen and fitted with a cover.
In the Pensky–Martens closed-cup flash-point test, a brass test cup is filled with a test specimen and fitted with a cover.
Permanent Downhole Gauge
A Permanent Downhole Gauge (PDG) is a pressure and/or temperature gauge permanently installed in an oil or gas well.
A Permanent Downhole Gauge (PDG) is a pressure and/or temperature gauge permanently installed in an oil or gas well.
Permeameter
The permeameter is an instrument for rapidly measuring the electromagnetic permeability of samples of iron or steel with sufficient accuracy for many commercial purposes.
The permeameter is an instrument for rapidly measuring the electromagnetic permeability of samples of iron or steel with sufficient accuracy for many commercial purposes.
pH meter
A pH meter is an electronic instrument measuring the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances).
A pH meter is an electronic instrument measuring the pH (acidity or alkalinity) of a liquid (though special probes are sometimes used to measure the pH of semi-solid substances).
Phoropter
A phoroptor is an instrument commonly used by eye care professionals during an eye examination, containing different lenses used for refraction of the eye during sight testing, to measure an ind...
A phoroptor is an instrument commonly used by eye care professionals during an eye examination, containing different lenses used for refraction of the eye during sight testing, to measure an ind...
Photoionization detector
A photoionization detector or PID is a type of gas detector.
A photoionization detector or PID is a type of gas detector.
Photoplethysmograph
A photoplethysmograph is a device used to optically obtain a volumetric measurement of an organ.
A photoplethysmograph is a device used to optically obtain a volumetric measurement of an organ.
Piezometer
A piezometer is a small-diameter observation well used to measure the hydraulic head of groundwater in aquifers.
A piezometer is a small-diameter observation well used to measure the hydraulic head of groundwater in aquifers.
Pilot direction indicator
A pilot direction indicator, or PDI, is an aircraft instrument used by bombardiers to indicate heading changes to the pilot in order to direct them to the proper location to drop bombs.
A pilot direction indicator, or PDI, is an aircraft instrument used by bombardiers to indicate heading changes to the pilot in order to direct them to the proper location to drop bombs.
Pioneer Award Aviation
The Pioneer Award is selected by the Pioneer Award Committee of the IEEE Aerospace and Electronic Systems Society.
The Pioneer Award is selected by the Pioneer Award Committee of the IEEE Aerospace and Electronic Systems Society.
Pit sword
The pit sword (also known as a rodmeter) is a blade of metal or plastic that extends into the water beneath the hull of a nautical vessel.
The pit sword (also known as a rodmeter) is a blade of metal or plastic that extends into the water beneath the hull of a nautical vessel.
Pitometer log
Pitometer logs (also known as pit logs) are devices used to measure a ship's speed relative to the water.
Pitometer logs (also known as pit logs) are devices used to measure a ship's speed relative to the water.
Plane table
A plane table is a device used in surveying and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps.
A plane table is a device used in surveying and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps.
Planimeter
A planimeter (also known as a platometer) is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.
A planimeter (also known as a platometer) is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.
Plastometer
A plastometer is a tool used to doodool and determine the flow properties of plastic materials.
A plastometer is a tool used to doodool and determine the flow properties of plastic materials.
Plethysmograph
A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains).
A plethysmograph is an instrument for measuring changes in volume within an organ or whole body (usually resulting from fluctuations in the amount of blood or air it contains).
Plumb-bob
A plumb-bob or a plummet is a weight, usually with a pointed tip on the bottom, that is suspended from a string and used as a vertical reference line, or plumb-line.
A plumb-bob or a plummet is a weight, usually with a pointed tip on the bottom, that is suspended from a string and used as a vertical reference line, or plumb-line.
Plurimeter
A plurimeter is a hand-held measuring instrument for determining surface area or relative angles between surfaces.
A plurimeter is a hand-held measuring instrument for determining surface area or relative angles between surfaces.
Potentiometer (measuring instrument)
A potentiometer is an instrument for measuring the potential in a circuit.
A potentiometer is an instrument for measuring the potential in a circuit.
Potometer
A potometer —sometimes known as a transpirometer— is a device used for measuring the rate of water uptake of a leafy shoot.
A potometer —sometimes known as a transpirometer— is a device used for measuring the rate of water uptake of a leafy shoot.
Pressure measurement
Instruments used to measure pressure are called pressure gauges or vacuum gauges.
Instruments used to measure pressure are called pressure gauges or vacuum gauges.
Profilograph
The profilograph is a device used to measure pavement surface roughness.
The profilograph is a device used to measure pavement surface roughness.
Programmable scale
Programmable Scale is a new generation of scale indicator.
Programmable Scale is a new generation of scale indicator.
Proton-transfer-reaction mass spectrometry
Proton-transfer-reaction mass spectrometry (PTR-MS) is a very sensitive technique for online monitoring of volatile organic compounds (VOCs) in ambient air developed by scientists at the Institu...
Proton-transfer-reaction mass spectrometry (PTR-MS) is a very sensitive technique for online monitoring of volatile organic compounds (VOCs) in ambient air developed by scientists at the Institu...
Psophometer
In telecommunications, a psophometer is an instrument that provides a visual indication of the audible effects of disturbing voltages of various frequencies.
In telecommunications, a psophometer is an instrument that provides a visual indication of the audible effects of disturbing voltages of various frequencies.
Pulse-Doppler radar
Pulse-Doppler is a 4D radar system capable of detecting both target 3D location as well as measuring radial velocity.
Pulse-Doppler is a 4D radar system capable of detecting both target 3D location as well as measuring radial velocity.
Pyranometer
A pyranometer is a type of actinometer used to measure broadband solar irradiance on a planar surface and is a sensor that is designed to measure the solar radiation flux density (in watts per m...
A pyranometer is a type of actinometer used to measure broadband solar irradiance on a planar surface and is a sensor that is designed to measure the solar radiation flux density (in watts per m...
Pyrometer
A pyrometer is a non-contacting device that intercepts and measures thermal radiation, a process known as pyrometry.
A pyrometer is a non-contacting device that intercepts and measures thermal radiation, a process known as pyrometry.
Q meter
A Q meter is a piece of equipment used in the testing of radio frequency circuits.
A Q meter is a piece of equipment used in the testing of radio frequency circuits.
QEMSCAN
QEMSCAN is the name for an integrated Automated Mineralogy solution providing quantitative analysis of minerals, rocks and man-made materials.
QEMSCAN is the name for an integrated Automated Mineralogy solution providing quantitative analysis of minerals, rocks and man-made materials.
Quadrant (instrument)
A quadrant is an instrument that is used to measure angles up to 90°.
A quadrant is an instrument that is used to measure angles up to 90°.
Quadrupole ion trap
A quadrupole ion trap exists in both linear and 3D (Paul Trap, QIT) varieties and refers to an ion trap that uses constant DC and radio frequency (RF) oscillating AC electric fields ...
A quadrupole ion trap exists in both linear and 3D (Paul Trap, QIT) varieties and refers to an ion trap that uses constant DC and radio frequency (RF) oscillating AC electric fields ...
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects.
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects.
Radar altimeter
A radar altimeter, radio altimeter, low range radio altimeter (LRRA) or simply RA measures altitude above the terrain presently beneath an aircraft or spacecraft.
A radar altimeter, radio altimeter, low range radio altimeter (LRRA) or simply RA measures altitude above the terrain presently beneath an aircraft or spacecraft.
Radar gun
A radar speed gun is a small doppler radar unit used to measure the speed of moving objects, including vehicles, pitched baseballs, runners and other moving objects.
A radar speed gun is a small doppler radar unit used to measure the speed of moving objects, including vehicles, pitched baseballs, runners and other moving objects.
Radio frequency sweep
Radio frequency sweep or "Frequency sweep" or "RF sweep" refer to scanning a radio frequency band for detecting signals being transmitted there.
Radio frequency sweep or "Frequency sweep" or "RF sweep" refer to scanning a radio frequency band for detecting signals being transmitted there.
Radio latino
A radio latino is a measuring instrument used in surveying and military engineering starting in the 16th century.
A radio latino is a measuring instrument used in surveying and military engineering starting in the 16th century.
Radio-frequency sweep
Radio frequency sweep or "Frequency sweep" or "RF sweep" refer to scanning a radio frequency band for detecting signals being transmitted there.
Radio frequency sweep or "Frequency sweep" or "RF sweep" refer to scanning a radio frequency band for detecting signals being transmitted there.
Radiosonde
A radiosonde is a unit for use in weather balloons that measures various atmospheric parameters and transmits them to a fixed receiver.
A radiosonde is a unit for use in weather balloons that measures various atmospheric parameters and transmits them to a fixed receiver.
Reactimeter
A reactimeter is a diagnostic device used in nuclear power plants for measuring the reactivity of fissile materials as they approach criticality.
A reactimeter is a diagnostic device used in nuclear power plants for measuring the reactivity of fissile materials as they approach criticality.
Reflecting instrument
Reflecting instruments are those that use mirrors to enhance their ability to make measurements.
Reflecting instruments are those that use mirrors to enhance their ability to make measurements.
Reflection high energy electron diffraction
Reflection high-energy electron diffraction (RHEED) is a technique used to characterize the surface of crystalline materials.
Reflection high-energy electron diffraction (RHEED) is a technique used to characterize the surface of crystalline materials.
Refractometer
A refractometer is a laboratory or field device for the measurement of an index of refraction (refractometry).
A refractometer is a laboratory or field device for the measurement of an index of refraction (refractometry).
Resistance thermometer
Resistance thermometers, also called resistance temperature detectors, are sensors used to measure temperature by correlating the resistance of the RTD element with temperature.
Resistance thermometers, also called resistance temperature detectors, are sensors used to measure temperature by correlating the resistance of the RTD element with temperature.
RFQ Beam Coolers
An Radio Frequency Quadrupole Beam Cooler is a device for Particle beam cooling, especially suited for ion beams.
An Radio Frequency Quadrupole Beam Cooler is a device for Particle beam cooling, especially suited for ion beams.
Rheochord
A Rheochord is a wire that can measure the resistance of an electric current, or the variability of the current.
A Rheochord is a wire that can measure the resistance of an electric current, or the variability of the current.
Rheometer
A rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces.
A rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces.
Robel pole
A Robel pole is a device consisting of a 1–2 metre vertical pole possessing alternating horizontal bands and a 4 m line of rope or cord.
A Robel pole is a device consisting of a 1–2 metre vertical pole possessing alternating horizontal bands and a 4 m line of rope or cord.
Roll hardness tester
A roll hardness tester is a device to measure the roll hardness, hardness profile and hardness variation of paper rolls.
A roll hardness tester is a device to measure the roll hardness, hardness profile and hardness variation of paper rolls.
Romer arm
A ROMER Arm is a term for a portable coordinate measuring machine ROMER, a company in the Hexagon Metrology Group, designed the ROMER arm in the 1980s to solve the problem of how to measure larg...
A ROMER Arm is a term for a portable coordinate measuring machine ROMER, a company in the Hexagon Metrology Group, designed the ROMER arm in the 1980s to solve the problem of how to measure larg...
Russell C. Newhouse
Russell Conwell Newhouse made many contributions to the advancement of aviation in a distinguished career running from the late 1920s into the 1970s.
Russell Conwell Newhouse made many contributions to the advancement of aviation in a distinguished career running from the late 1920s into the 1970s.
Saccharimeter
A saccharimeter is an instrument for measuring the concentration of sugar solutions.
A saccharimeter is an instrument for measuring the concentration of sugar solutions.
Salinometer
A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution.
A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution.
Salt spray test
The salt spray test is a standardized test method used to check corrosion resistance of coated samples.
The salt spray test is a standardized test method used to check corrosion resistance of coated samples.
Scanning mobility particle sizer
A Scanning Mobility Particle Sizer (abbreviated SMPS) is a spectrometer and can measure particles from 2.5 nm to 1000 nm.
A Scanning Mobility Particle Sizer (abbreviated SMPS) is a spectrometer and can measure particles from 2.5 nm to 1000 nm.
Scanning SQUID microscope
A Scanning SQUID Microscope is a sensitive near-field imaging system for the measurement of weak magnetic fields by moving a Superconducting Quantum Interference Device (SQUID) across an area.
A Scanning SQUID Microscope is a sensitive near-field imaging system for the measurement of weak magnetic fields by moving a Superconducting Quantum Interference Device (SQUID) across an area.
Scanning SQUID microscopy
Scanning SQUID microscopy is a technique where a superconducting quantum interference device (SQUID) is used to image surface magnetic field strength with micrometre scale resolution.
Scanning SQUID microscopy is a technique where a superconducting quantum interference device (SQUID) is used to image surface magnetic field strength with micrometre scale resolution.
Sclerometer
The sclerometer, also known as the Turner-sclerometer (from meaning "hard"), is an instrument used by mineralogists to measure the scratch hardness of materials.
The sclerometer, also known as the Turner-sclerometer (from meaning "hard"), is an instrument used by mineralogists to measure the scratch hardness of materials.
Scleroscope
A scleroscope is a device used to measure rebound hardness.
A scleroscope is a device used to measure rebound hardness.
SCR-658 radar
The SCR-658 radar was developed in conjunction with the SCR-268 radar.
The SCR-658 radar was developed in conjunction with the SCR-268 radar.
Sector instrument
A sector instrument is a general term for a class of mass spectrometer that uses a static electric or magnetic sector or some combination of the two (separately in space) as a mass analyzer.
A sector instrument is a general term for a class of mass spectrometer that uses a static electric or magnetic sector or some combination of the two (separately in space) as a mass analyzer.
Seismometer
Seismometers are instruments that measure motions of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources.
Seismometers are instruments that measure motions of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources.
Sensor
A sensor (also called detectors) is a device that measures a measurable attribute and converts it into a signal which can be read by an observer or by an instrument.
A sensor (also called detectors) is a device that measures a measurable attribute and converts it into a signal which can be read by an observer or by an instrument.
Sequence of events recorder
A Sequence of Events Recorder (SER) is an intelligent standalone microprocessor based system, which monitors external inputs and records the time and sequence of the changes.
A Sequence of Events Recorder (SER) is an intelligent standalone microprocessor based system, which monitors external inputs and records the time and sequence of the changes.
SERF
A spin exchange relaxation-free (SERF) magnetometer is a type of magnetometer developed at Princeton University in the early 2000s.
A spin exchange relaxation-free (SERF) magnetometer is a type of magnetometer developed at Princeton University in the early 2000s.
Sextant (astronomical)
Sextants for astronomical observations were used primarily for measuring the positions of stars.
Sextants for astronomical observations were used primarily for measuring the positions of stars.
ShapeAccelArray
ShapeAccelArray (SAA) is a sensor that can be placed in a borehole or embedded within a structure to monitor deformation.
ShapeAccelArray (SAA) is a sensor that can be placed in a borehole or embedded within a structure to monitor deformation.
Sherborne Sensors
Sherborne Sensors is a designer and manufacturer of precision inclinometers, accelerometers and force transducers.
Sherborne Sensors is a designer and manufacturer of precision inclinometers, accelerometers and force transducers.
Ship log
A chip log, also called common log, ship log or just log, is a navigation tool used by mariners to estimate the speed of a vessel through water.
A chip log, also called common log, ship log or just log, is a navigation tool used by mariners to estimate the speed of a vessel through water.
Shock and vibration data logger
A shock data logger or vibration data logger is a measurement instrument that is capable of autonomously recording shocks or vibrations over a defined period of time.
A shock data logger or vibration data logger is a measurement instrument that is capable of autonomously recording shocks or vibrations over a defined period of time.
Shock, Vibration & Acceleration Data Logger
An acceleration logger - also called shock data logger or vibration data logger is a measurement instrument that is capable of autonomously recording shocks or vibrations over a defi...
An acceleration logger - also called shock data logger or vibration data logger is a measurement instrument that is capable of autonomously recording shocks or vibrations over a defi...
Sight glass
A sight glass or water gauge is a transparent tube through which the operator of a tank or boiler can observe the level of liquid contained within.
A sight glass or water gauge is a transparent tube through which the operator of a tank or boiler can observe the level of liquid contained within.
Signal analyzer
A signal analyzer employs digital techniques to extract useful information that is carried by an electrical signal.
A signal analyzer employs digital techniques to extract useful information that is carried by an electrical signal.
Skin conductance
Skin conductance, also known as galvanic skin response (GSR), electrodermal response (EDR), psychogalvanic reflex (PGR), skin conductance response (SCR) or skin conduc...
Skin conductance, also known as galvanic skin response (GSR), electrodermal response (EDR), psychogalvanic reflex (PGR), skin conductance response (SCR) or skin conduc...
Sky Quality Meter
The Sky Quality Meter (SQM) is a device used to measure the luminance of the night sky.
The Sky Quality Meter (SQM) is a device used to measure the luminance of the night sky.
Sonometer
A sonometer is an apparatus made of hollow box having two holes.
A sonometer is an apparatus made of hollow box having two holes.
Sound level meter
Sound level meters measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial, environmental a...
Sound level meters measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial, environmental a...
Sounding line
A sounding line or lead line is a length of thin rope with a plummet, generally of lead, at its end.
A sounding line or lead line is a length of thin rope with a plummet, generally of lead, at its end.
Spectrohelioscope
A spectrohelioscope is a type of solar telescope designed by George Ellery Hale in 1924 to allow the Sun to be viewed in a selected wavelength of light.
A spectrohelioscope is a type of solar telescope designed by George Ellery Hale in 1924 to allow the Sun to be viewed in a selected wavelength of light.
Spectrometer
A spectrometer is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials.
A spectrometer is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials.
Spectrum analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument.
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument.
Speedometer
A speedometer is a gauge that measures and displays the instantaneous speed of a land vehicle.
A speedometer is a gauge that measures and displays the instantaneous speed of a land vehicle.
SQUID
A SQUID is a very sensitive magnetometer used to measure extremely subtle magnetic fields, based on superconducting loops containing Josephson junctions.
A SQUID is a very sensitive magnetometer used to measure extremely subtle magnetic fields, based on superconducting loops containing Josephson junctions.
Stadia mark
Stadia marks, also called stadia lines or stadia hairs, are crosshairs on the reticle of a theodolite or other surveying instrument that allow stadiametric rangefinding.
Stadia marks, also called stadia lines or stadia hairs, are crosshairs on the reticle of a theodolite or other surveying instrument that allow stadiametric rangefinding.
Stadiametric rangefinding
Stadiametric rangefinding, or the stadia method is a technique of measuring distances with a telescopic instrument.
Stadiametric rangefinding, or the stadia method is a technique of measuring distances with a telescopic instrument.
Stevenson screen
A Stevenson screen or instrument shelter is an enclosure to shield meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air...
A Stevenson screen or instrument shelter is an enclosure to shield meteorological instruments against precipitation and direct heat radiation from outside sources, while still allowing air...
Strainmeter
A strainmeter is an instrument used by geophysicists to measure the deformation of the Earth.
A strainmeter is an instrument used by geophysicists to measure the deformation of the Earth.
String potentiometer
A string potentiometer is a transducer used to detect and measure linear position and velocity using a flexible cable and spring-loaded spool.
A string potentiometer is a transducer used to detect and measure linear position and velocity using a flexible cable and spring-loaded spool.
Stroboscope
A stroboscope, also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary.
A stroboscope, also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary.
Superconducting nanowire single-photon detector
The superconducting nanowire single-photon detector is a type of near-infrared and optical single-photon detector based on a current-biased superconducting nanowire.
The superconducting nanowire single-photon detector is a type of near-infrared and optical single-photon detector based on a current-biased superconducting nanowire.
SWR meter
The SWR meter or VSWR (voltage standing wave ratio) meter measures the standing wave ratio in a transmission line.
The SWR meter or VSWR (voltage standing wave ratio) meter measures the standing wave ratio in a transmission line.
Sysmex XE-2100
The Sysmex XE-2100 is a haematology automated analyser, used to quickly perform full blood counts and reticulocyte counts.
The Sysmex XE-2100 is a haematology automated analyser, used to quickly perform full blood counts and reticulocyte counts.
Tachometer
A tachometer (revolution-counter, Tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine.
A tachometer (revolution-counter, Tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine.
Tachymeter
A tachymeter or tacheometer is a kind of theodolite used for rapid measurements and determines, electronically or electro-optically, the distance to target, and is highly automated in its ...
A tachymeter or tacheometer is a kind of theodolite used for rapid measurements and determines, electronically or electro-optically, the distance to target, and is highly automated in its ...
Tachymeter (survey)
A tachymeter or tacheometer is a type of theodolite used for rapid measurements and determines, electronically or electro-optically, the distance to target, and is highly automated in its ...
A tachymeter or tacheometer is a type of theodolite used for rapid measurements and determines, electronically or electro-optically, the distance to target, and is highly automated in its ...
Talyrond
A Talyrond is a sphericity-measuring device, originally a trade name from Taylor Hobson.
A Talyrond is a sphericity-measuring device, originally a trade name from Taylor Hobson.
Taximeter
A taximeter is a mechanical or electronic device installed in taxicabs and auto rickshaws that calculates passenger fares based on a combination of distance travelled and waiting time.
A taximeter is a mechanical or electronic device installed in taxicabs and auto rickshaws that calculates passenger fares based on a combination of distance travelled and waiting time.
TDS meter
A TDS Meter indicates the amount of Total Dissolved Solids (TDS) in a solution.
A TDS Meter indicates the amount of Total Dissolved Solids (TDS) in a solution.
Tell-tale
A tell-tale or telltale is an indicator, signal, or sign that conveys the status of a situation, mechanism, or system.
A tell-tale or telltale is an indicator, signal, or sign that conveys the status of a situation, mechanism, or system.
Temperature data logger
A temperature data logger, also called temperature monitor, is a portable measurement instrument that is capable of autonomously recording temperature over a defined period of time.
A temperature data logger, also called temperature monitor, is a portable measurement instrument that is capable of autonomously recording temperature over a defined period of time.
Tensometer
A tensometer is a device used to evaluate the Young's modulus (how much it stretches under strain) of a material and other tensile properties of materials, such as tensile strength.
A tensometer is a device used to evaluate the Young's modulus (how much it stretches under strain) of a material and other tensile properties of materials, such as tensile strength.
Test probe
A test probe is a physical device used to connect electronic test equipment to the device under test.
A test probe is a physical device used to connect electronic test equipment to the device under test.
Thermal conductivity detector
The thermal conductivity detector is a bulk property detector and a chemical specific detector commonly used in gas-liquid chromatography.
The thermal conductivity detector is a bulk property detector and a chemical specific detector commonly used in gas-liquid chromatography.
Thermal mass flow meter
Thermal mass flow meters are used almost entirely for gas flow applications.
Thermal mass flow meters are used almost entirely for gas flow applications.
Thermocouple
A thermocouple is a device consisting of two different conductors that produce a voltage, proportional to a temperature difference, between either ends of the two conductors.
A thermocouple is a device consisting of two different conductors that produce a voltage, proportional to a temperature difference, between either ends of the two conductors.
Thin-film thickness monitor
Thin-film thickness monitors, deposition rate controllers, and so on, are a family of instruments used in high and ultra-high vacuum systems.
Thin-film thickness monitors, deposition rate controllers, and so on, are a family of instruments used in high and ultra-high vacuum systems.
Time stretch analog-to-digital converter
Time-stretch analog-to-digital converter is an analog-to-digital converter system that has the capability of digitizing very high bandwidth signals that cannot be captured by conventional electr...
Time-stretch analog-to-digital converter is an analog-to-digital converter system that has the capability of digitizing very high bandwidth signals that cannot be captured by conventional electr...
Time to digital converter
In electronic instrumentation and signal processing, a time to digital converter is a device for recognizing events and providing a digital representation of the time they occurred.
In electronic instrumentation and signal processing, a time to digital converter is a device for recognizing events and providing a digital representation of the time they occurred.
Tissue Doppler Echocardiography
Tissue Doppler Echocardiography represents a technology that measures the velocity of the heart muscle or myocardium through the two phases of a single heartbeat.
Tissue Doppler Echocardiography represents a technology that measures the velocity of the heart muscle or myocardium through the two phases of a single heartbeat.
Torque tester
A torque tester is used as a quality control device to test or calibrate torque controlled tools.
A torque tester is used as a quality control device to test or calibrate torque controlled tools.
Transition edge sensor
A transition edge sensor or TES consists of a superconducting material held on its superconducting transition.
A transition edge sensor or TES consists of a superconducting material held on its superconducting transition.
Transversal (instrument making)
Transversals are a geometric construction on a scientific instrument to allow a graduation to be read to a finer degree of accuracy.
Transversals are a geometric construction on a scientific instrument to allow a graduation to be read to a finer degree of accuracy.
Tribometer
A tribometer is an instrument that measures tribological quantities, such as coefficient of friction, friction force, and wear volume, between two surfaces in contact.
A tribometer is an instrument that measures tribological quantities, such as coefficient of friction, friction force, and wear volume, between two surfaces in contact.
Trip computer
A trip computer is an onboard computer device fitted to cars which can generally record distance travelled, average speed, average fuel consumption, and display real time fuel consumption inform...
A trip computer is an onboard computer device fitted to cars which can generally record distance travelled, average speed, average fuel consumption, and display real time fuel consumption inform...
Truck scale
Truck scales (US) or weigh bridges (non-US) are large scales, usually mounted permanently on a concrete foundation, that are used to weigh entire vehicles and their contents.
Truck scales (US) or weigh bridges (non-US) are large scales, usually mounted permanently on a concrete foundation, that are used to weigh entire vehicles and their contents.
Trundle wheel
The trundle wheel is a measuring device, a simplified form of a surveyor's wheel.
The trundle wheel is a measuring device, a simplified form of a surveyor's wheel.
Turndown ratio
Turndown ratio is a flow measurement term that indicates the range a specific flow meter, or meter type, is able to measure with acceptable accuracy.
Turndown ratio is a flow measurement term that indicates the range a specific flow meter, or meter type, is able to measure with acceptable accuracy.
Twist compression tester
The Twist Compression Tester ("TCT") is a hydraulically operated bench-top apparatus used to evaluate the level of friction and/or wear between two materials under lubricated or non-lubricated c...
The Twist Compression Tester ("TCT") is a hydraulically operated bench-top apparatus used to evaluate the level of friction and/or wear between two materials under lubricated or non-lubricated c...
Ubbelohde viscometer
A Ubbelohde type viscometer or suspended-level viscometer is a measuring instrument which uses a capillary based method of measuring viscosity.
A Ubbelohde type viscometer or suspended-level viscometer is a measuring instrument which uses a capillary based method of measuring viscosity.
Ultrasonic flow meter
An ultrasonic flow meter is a type of flow meter that measures the velocity of a liquid or gas by using the principle of ultrasound.
An ultrasonic flow meter is a type of flow meter that measures the velocity of a liquid or gas by using the principle of ultrasound.
Ultrasonic ranging module
An Ultrasonic ranging module, also called a range finder, is a small device that sends out an ultrasonic sound via a transducer, and since the sound has a very high frequency, a frequency that w...
An Ultrasonic ranging module, also called a range finder, is a small device that sends out an ultrasonic sound via a transducer, and since the sound has a very high frequency, a frequency that w...
Universal Metering Interface
The Universal Metering Interface is a proposed open standard interface for smart network devices developed by Cambridge Consultants.
The Universal Metering Interface is a proposed open standard interface for smart network devices developed by Cambridge Consultants.
Universal testing machine
A universal testing machine, also known as a universal tester, materials testing machine or materials test frame, is used to test the tensile stress and compressive strength of...
A universal testing machine, also known as a universal tester, materials testing machine or materials test frame, is used to test the tensile stress and compressive strength of...
USB-6008
The National Instruments USB-6008 is a low-cost, multifunction data acquisition device (DAQ).
The National Instruments USB-6008 is a low-cost, multifunction data acquisition device (DAQ).
Variable area meter
A variable area meter is a meter that measures fluid flow by allowing the cross sectional area of the device to vary in response to the flow, causing some measurable effect that indicates the rate.
A variable area meter is a meter that measures fluid flow by allowing the cross sectional area of the device to vary in response to the flow, causing some measurable effect that indicates the rate.
Variometer
The term variometer also refers to a type of variable transformer or an instrument for measuring the magnitude and direction of a Magnetic field.
The term variometer also refers to a type of variable transformer or an instrument for measuring the magnitude and direction of a Magnetic field.
Vector signal analyzer
A vector signal analyzer is an instrument that measures the magnitude and phase of the input signal at a single frequency within the IF bandwidth of the instrument.
A vector signal analyzer is an instrument that measures the magnitude and phase of the input signal at a single frequency within the IF bandwidth of the instrument.
Vectorscope
A vectorscope is a special type of oscilloscope used in both audio and video applications.
A vectorscope is a special type of oscilloscope used in both audio and video applications.
Versatile Laboratory Aid
The Versatile Laboratory Aid is a 4-channel data logging tool that was created as part of a joint venture by Ashley Clarke and David Binney of Leeds University and Educational Electronics.
The Versatile Laboratory Aid is a 4-channel data logging tool that was created as part of a joint venture by Ashley Clarke and David Binney of Leeds University and Educational Electronics.
Versorium
The versorium (Latin "turn around") was the first crude electroscope, the first instrument that could detect the presence of static electric charge.
The versorium (Latin "turn around") was the first crude electroscope, the first instrument that could detect the presence of static electric charge.
Vertometer
Vertometer was the trade name of an instrument made by Bausch & Lomb (B&L) and later by Reichert.
Vertometer was the trade name of an instrument made by Bausch & Lomb (B&L) and later by Reichert.
Vibrating sample magnetometer
A vibrating sample magnetometer or VSM is a scientific instrument that measures magnetic properties, invented in 1955 by Simon Foner at Lincoln Laboratory MIT. The paper about his work was publi...
A vibrating sample magnetometer or VSM is a scientific instrument that measures magnetic properties, invented in 1955 by Simon Foner at Lincoln Laboratory MIT. The paper about his work was publi...
Vibration galvanometer
Vibration galvanometer is a type of mirror galvanometer, usually of the type of a coil suspended in the gap of a magnet.
Vibration galvanometer is a type of mirror galvanometer, usually of the type of a coil suspended in the gap of a magnet.
Virtual instrumentation
Virtual instrumentation is the use of customizable software and modular measurement hardware to create user-defined measurement systems, called virtual instruments.
Virtual instrumentation is the use of customizable software and modular measurement hardware to create user-defined measurement systems, called virtual instruments.
VU meter
A Volume Unit meter or Standard Volume Indicator is a device displaying a representation of the signal level in audio equipment.
A Volume Unit meter or Standard Volume Indicator is a device displaying a representation of the signal level in audio equipment.
Water detector
A Water detector is a small electronic device that is designed to detect the presence of water and alert humans in time to allow the prevention of water damage.
A Water detector is a small electronic device that is designed to detect the presence of water and alert humans in time to allow the prevention of water damage.
Watercut meter
A water cut meter measures the water content (cut) of crude oil and hydrocarbons as they flow through a pipeline.
A water cut meter measures the water content (cut) of crude oil and hydrocarbons as they flow through a pipeline.
Watt balance
The watt balance is an experimental electromechanical weight measuring instrument that measures the weight of a test object very precisely by the strength of an electric current and a voltage.
The watt balance is an experimental electromechanical weight measuring instrument that measures the weight of a test object very precisely by the strength of an electric current and a voltage.
Wattmeter
The wattmeter is an instrument for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit.
The wattmeter is an instrument for measuring the electric power (or the supply rate of electrical energy) in watts of any given circuit.
Wheatstone bridge
A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component.
A Wheatstone bridge is an electrical circuit used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown component.
White light scanner
A White Light Scanner is a device for measuring the physical geometrical characteristics of an object.
A White Light Scanner is a device for measuring the physical geometrical characteristics of an object.
Zahn cup
A Zahn cup is a viscosity measurement device widely used in the paint industry.
A Zahn cup is a viscosity measurement device widely used in the paint industry.