#measuring_instrument__measuringinstrument__measuring_system__measuringsystem__measuring_device__measuringdevice instrument that shows the extent or amount or quantity or degree of something
supertype: #instrument a device that requires skill for proper use
subtype: #accelerometer an instrument for measuring the acceleration of aircraft or rockets
subtype: #actinometer an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect)
subtype: #algometer device for measuring pain caused by pressure
subtype: #altazimuth an instrument that measures the altitude and azimuth of celestial bodies; used in navigation
subtype: #altimeter an instrument that measures the height above ground; used in navigation
subtype: #hypsometer an altimeter that uses the boiling point of water to determine land elevation
subtype: #astrolabe an early form of sextant
subtype: #atmometer__evaporometer an instrument that measures rate of evaporation of water
subtype: #audiometer an instrument used to measure the sensitivity of hearing
subtype: #barometer an instrument that measures atmospheric pressure
subtype: #aneroid_barometer__aneroidbarometer__aneroid a barometer that measures pressure without using fluids
subtype: #barograph a recording barometer; automatically records on paper the variations in atmospheric pressure
subtype: #mercury_barometer__mercurybarometer barometer that shows pressure by the height of a column of mercury
subtype: #weatherglass a simple barometer for indicating changes in atmospheric pressure
subtype: #bolometer an instrument that measures heat radiation; extremely sensitive
subtype: #bubble_chamber an instrument that records the tracks of ionizing particles
subtype: #burette measuring instrument consisting of a graduated glass tube with a tap at the bottom; used for titration
subtype: #caliper__calipers__calliper__callipers__calliper an instrument for measuring the distance between two points
subtype: #inside_caliper caliper for measuring inside dimensions (the size of a cavity or hole); points on its legs curve outward
subtype: #micrometer_caliper__micrometer__micrometer_gauge caliper for measuring small distances
subtype: #odd-leg_caliper__oddlegcaliper caliper having the points on its legs both curve in the same direction
subtype: #outside_caliper__outsidecaliper caliper for measuring outside dimensions; points on its legs curve inward
subtype: #vernier_caliper__vernier_micrometer__verniermicrometer a caliper with a vernier scale for very fine measurements
subtype: #calorimeter a measuring instrument that determines quantities of heat
subtype: #bomb_calorimeter__bomb strong sealed vessel for measuring heat of combustion
subtype: #chronoscope an instrument for accurate measurements of small intervals of time
subtype: #time-delay_measuring_instrument__time-delay_measuring_system chronoscope for measuring the time difference between two events
subtype: #colorimeter__tintometer a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents
subtype: #counter_tube__countertube a measuring instrument for counting individual ionizing events
subtype: #crystal_counter__crystalcounter a counter tube in which an ionizing event increases conductivity
subtype: #Geiger_counter__Geiger-Muller_counter counter tube that detects ionizing radiations
subtype: #proportional_counter_tube__proportional_counter counter tube whose output pulse is proportional to number of ions produced
subtype: #boron_counter_tube__boroncountertube a proportional counter tube for counting neutrons
subtype: #scintillation_counter__scintillationcounter counter tube in which light flashes when exposed to ionizing radiation
subtype: #craniometer an instrument for measuring skull sizes
subtype: #cryoscope a measuring instrument for measuring freezing and melting points
subtype: #transit_declinometer__transitdeclinometer__declinometer an instrument for measuring magnetic declination
subtype: #densimeter__densitometer a measuring instrument for determining density or specific gravity
subtype: #dasymeter densimeter consisting of a thin glass globe that is weighed in a gas to determine its density
subtype: #densitometer a measuring instrument for determining optical or photographic density
subtype: #microphotometer special kind of densitometer that measures density variations over a very small area
subtype: #dosemeter__dosimeter a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)
subtype: #dynamometer measuring instrument designed to measure power
subtype: #electrodynamometer measuring instrument that uses the interaction of the magnetic fields of two coils to measure current or voltage or power
subtype: #electroscope measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
subtype: #eudiometer measuring instrument consisting of a graduated glass tube for measuring volume changes in chemical reactions between gases
subtype: #gauge__gage a measuring instrument for measuring and indicating a quantity or for testing conformity with a standard
subtype: #anemometer__wind_gauge a gauge for recording the speed and direction of wind
subtype: #depth_gauge__depthgauge a gauge for measuring the depth of grooves or holes or other concavities
subtype: #dipstick a graduated rod dipped into a container to indicate the fluid level
subtype: #gasoline_gauge__gas_gauge__gasgauge gauge that indicates the amount of gasoline left in the gasoline tank of a vehicle
subtype: #pressure_gauge gauge for measuring and indicating fluid pressure
subtype: #manometer a pressure gauge for comparing pressures of a gas
subtype: #tensimeter a manometer for measuring vapor pressure
subtype: #sphygmomanometer a pressure gauge for measuring blood pressure
subtype: #rain_gauge gauge consisting of an instrument to measure the quantity of precipitation
subtype: #strain_gauge an gauge for measuring strain in a surface
subtype: #surface_gauge__surfacegauge__scribing_block gauge consisting of a scriber mounted on an adjustable stand; used to test the accuracy of plane surfaces
subtype: #vacuum_gauge a gauge for indicating negative atmospheric pressure
subtype: #water_gauge__watergauge__water_gage__watergage__waterglas gauge for indicating the level of water in e.g. a tank or boiler or reservoir
subtype: #water_level.water_gauge a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube
subtype: #wire_gauge gauge for measuring the diameter of wire
subtype: #graduate a measuring instrument for measuring fluid volume; a glass container (cup or cylinder or flask) whose sides are marked with or divided into amounts
subtype: #graduated_cylinder__graduatedcylinder a cylindrical graduate
subtype: #gravimeter__gravity_meter__gravitymeter a measuring instrument for measuring variations in the gravitational field of the earth
subtype: #hematocrit__haematocrit a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
subtype: #hydrometer__gravimeter a measuring instrument for determining the specific gravity of a liquid or solid
subtype: #salinometer a hydrometer that determines the concentration of salt solutions by measuring their density
subtype: #thermohydrometer__thermogravimeter a hydrometer that includes a thermometer
subtype: #hygrometer measuring instrument for measuring the relative humidity of the atmosphere
subtype: #hygrodeik a wet and dry bulb hygrometer
subtype: #hygroscope hygrometer that shows variations in the relative humidity of the atmosphere
subtype: #psychrometer a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air
subtype: #dip_circle__dipcircle__inclinometer a measuring instrument for measuring the angle of magnetic dip (as from an airplane)
subtype: #integrator__planimeter a measuring instrument for measuring the area of an irregular plane figure
subtype: #interferometer any measuring instrument that uses interference patterns to make accurate measurements of waves
subtype: #ionization_chamber__ionization_tube a measuring instrument that measures the amount of ionizing radiation
subtype: #boron_chamber__boronchamber an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
subtype: #Geiger_tube__Geiger-Muller_tube an ionization chamber contained in a tube in a Geiger counter
subtype: #katharometer measures thermal conductivity
subtype: #Kundt's_tube a measuring instrument used to measure the speed of sound
subtype: #log.measuring_instrument measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water
subtype: #harpoon_log__harpoonlog a cylindrical log with a device that registers distance
subtype: #patent_log__screw_log__screwlog__taffrail_log a torpedo-shaped log with rotary fins that measure the ship's speed
subtype: #measuring_stick__measuringstick__measure__measuring_rod__measuringrod measuring instrument having a sequence of marks at regular intervals; used as a reference in making measurements
subtype: #board_rule__boardrule a measure used in computing board feet
subtype: #ruler__rule measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths
subtype: #carpenter's_rule__carpenter'srule a rule used by a carpenter
subtype: #foot_rule a ruler one foot long
subtype: #meterstick__metrestick a rule one meter long (usually marked off in centimeters and millimeters)
subtype: #yard_measure__yardstick a ruler or tape that is three feet long
subtype: #size_stick a mechanical measuring stick used by shoe fitters to measure the length and width of your foot
subtype: #meter.measuring_instrument any of various measuring instruments for measuring a quantity
subtype: #ammeter a meter that measures the flow of electrical current in amperes
subtype: #milliammeter a sensitive ammeter graduated in milliamperes
subtype: #electrometer meter to measure electrostatic voltage differences; draws no current from the source
subtype: #fluxmeter meter that measures magnetic flux by the current it generates in a coil
subtype: #galvanometer meter for detecting or comparing or measuring small electric currents
subtype: #astatic_galvanometer__astaticgalvanometer has a moving magnet and astatic coils arranged to cancel the effect of the Earth's magnetic field
subtype: #moving-coil_galvanometer a galvanometer that is operated by the force exerted by an electric current flowing in a movable coil suspended in a magnetic field
subtype: #ballistic_galvanometer__ballisticgalvanometer a moving-coil galvanometer that measures electric charge
subtype: #gas_meter__gasmeter__gasometer a meter for measuring the amount of gas flowing through a particular pipe
subtype: #magnetometer__gaussmeter an meter to compare strengths of magnetic fields
subtype: #odometer__hodometer__mileometer__milometer a meter that shows mileage traversed
subtype: #ohmmeter a meter for measuring electrical resistance in ohms
subtype: #postage_meter__postagemeter meter for bulk mailings that imprints correct prepaid postage on pieces of mail and records the total charge
subtype: #radiometer meter to detect and measure radiant energy (electromagnetic or acoustic)
subtype: #Crookes_radiometer electromagnetic radiometer consisting of a small paddlewheel that rotates when placed in daylight
subtype: #radiomicrometer radiometer that is extremely sensitive
subtype: #Rayleigh_disk an acoustic radiometer consisting of a light disk suspended from a quartz thread; when exposed to a progressive sound wave its torque can measure velocity
subtype: #reflectometer a meter that measures the reflectance of a surface
subtype: #speedometer__speed_indicator__speedindicator a meter fixed to a vehicle that measures and displays its speed
subtype: #machmeter speedometer for measuring the speed of an aircraft relative to the speed of sound
subtype: #taximeter a meter in a taxi that registers the fare (based on the length of the ride)
subtype: #voltmeter meter that measures the potential difference between two points
subtype: #electronic_voltmeter a voltmeter whose sensitivity is increased by amplification
subtype: #digital_voltmeter__digitalvoltmeter an electronic voltmeter that gives readings in digits
subtype: #millivoltmeter sensitive voltmeter that can measure voltage in millivolts
subtype: #water_meter__watermeter meter for measuring the quantity of water passing through a particular outlet
subtype: #nephoscope a grid-like measuring instrument for measuring the altitude, direction, and velocity of movement of clouds
subtype: #octant a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
subtype: #oximeter a measuring instrument that measures the oxygen in arterial blood
subtype: #pedometer measuring instrument for recording the number of steps taken in walking
subtype: #pelvimeter measuring instrument for performing pelvimetry
subtype: #photometer measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
subtype: #spectrophotometer a photometer for comparing two light radiations wavelength by wavelength
subtype: #piezometer a measuring instrument for measuring high pressures
subtype: #pipet__pipette measuring instrument consisting of a graduated glass tube used to measure or transfer precise volumes of a liquid by drawing the liquid up into the tube
subtype: #eye_dropper__eyedropper__dropper pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time
subtype: #Pitot-static_tube__Pitot_tube measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed
subtype: #Pitot_tube measuring instrument used to measure the velocity of fluid flow
subtype: #plethysmograph a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)
subtype: #body_plethysmograph plethysmograph consisting of a chamber surrounding the entire body; used in studies of respiration
subtype: #digital_plethysmograph__digitalplethysmograph plethysmograph applied to a digit of the hand or foot to measure skin blood flow
subtype: #potentiometer a measuring instrument for measuring direct current electromotive forces
subtype: #quadrant a measuring instrument for measuring altitude of heavenly bodies
subtype: #microwave_radar__microwaveradar__radar__radio_detection_and_ranging__radiodetectionandranging__radiolocation measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
subtype: #early_warning_radar__earlywarningradar a radar that is part of an early warning system
subtype: #three-dimensional_radar__threedimensionalradar__3d_radar radar that will report altitude as well as azimuth and distance of a target
subtype: #weather_radar__weatherradar radar that is able to detect clouds and precipitation
subtype: #rangefinder__range_finder__rangefinder a measuring instrument (acoustic or optical or electronic) for finding the distance of an object
subtype: #refractometer measuring instrument for measuring the refractive index of a substance
subtype: #weighing_machine__scale a measuring instrument for weighing; shows amount of mass
subtype: #balance.weighing_machine a scale for weighing; depends on pull of gravity
subtype: #beam_balance a balance consisting of a lever with two equal arms and a pan suspended from each arm
subtype: #analytical_balance__chemical_balance a beam balance of great precision used in quantitative chemical analysis
subtype: #electronic_balance balance that generates a current proportional to displacement of pan
subtype: #microbalance balance for weighing very small objects
subtype: #spring_balance__spring_scale a balance that measure weight by the tension on a helical spring
subtype: #steelyard__lever_scale__leverscale__beam_scale a portable balance consisting of a pivoted bar with arms of unequal length
subtype: #weighbridge platform scale flush with a roadway for weighing vehicles and cattle etc
subtype: #sclerometer a measuring instrument that measures the hardness of materials by penetrating them with a stylus that has a diamond point
subtype: #sector.measuring_instrument measuring instrument consisting of two graduated arms hinged at one end
subtype: #seismograph a measuring instrument for detecting and measuring the intensity and direction and duration of of movements of the ground (as an earthquake)
subtype: #sensitometer a measuring instrument for measuring the light sensitivity of film over a range of exposures
subtype: #sextant a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
subtype: #sonar__echo_sounder__asdic a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return (sonar is SOund NAvigation Ranging; asdic is Anti-Submarine Detection Investigation Committee)
subtype: #spark_chamber__sparkchamber__spark_counter__sparkcounter measuring instrument that detects ionizing radiation from elementary particles
subtype: #spherometer a measuring instrument for measuring the curvature of a surface
subtype: #spirograph a measuring instrument for recording the depth and rapidity of breathing movements
subtype: #spirometer a measuring instrument for measuring the vital capacity of the lungs
subtype: #static_tube a measuring instrument used to measure static pressure in a stream of fluid
subtype: #synchroscope__synchronoscoppe__synchronizer an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)
subtype: #tachometer__tach measuring instrument for indicating speed of rotation
subtype: #tachograph a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle
subtype: #tape_measure__tape__tapeline measuring instrument consisting of a narrow strip (cloth or metal) marked in inches or centimeters and used for measuring lengths; "the carpenter should have used his tape measure"
subtype: #tensiometer a measuring instrument for measuring the surface tension of a liquid
subtype: #wire_tensiometer__tensiometer a measuring instrument for measuring the tension in a wire or fiber or beam
subtype: #moisture_tensiometer__tensiometer a measuring instrument for measuring the moisture content of soil
subtype: #thermometer measuring instrument for measuring temperature
subtype: #alcohol_thermometer__alcoholthermometer__alcohol-in-glass_thermometer thermometer consisting of a glass capillary tube marked with degrees Celsius or Fahrenheit and containing alcohol which rises or falls as it expands or contracts with changes in temperature
subtype: #candy_thermometer__candythermometer a thermometer used to determine the temperature of candy syrups during cooking
subtype: #Centigrade_thermometer a thermometer calibrated in degrees centigrade
subtype: #cryometer a thermometer designed to measure low temperatures
subtype: #dry-bulb_thermometer an ordinary thermometer with a dry bulb; used to measure the air temperature
subtype: #Fahrenheit_thermometer a thermometer calibrated in degrees Fahrenheit
subtype: #gas_thermometer__air_thermometer__airthermometer thermometer that measures temperature by changes in the pressure of a gas kept at constant volume
subtype: #maximum_and_minimum_thermometer thermometer that records the highest and lowest temperatures reached during a period of time
subtype: #meat_thermometer a thermometer that is inserted into the center of a roast (with the top away from the heat source); used to measure how well done the meat is
subtype: #mercury_thermometer__mercurythermometer__mercury-in-glass_thermometer thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube
subtype: #Beckman_thermometer a mercury thermometer that measures small differences or changes in temperature
subtype: #mercury-in-glass_clinical_thermometer__clinical_thermometer a mercury thermometer designed to measure the temperature of the human body; graduated to cover a range a few degrees on either side of the normal body temperature
subtype: #oven_thermometer a thermometer that registers the temperature inside an oven
subtype: #pyrometer a thermometer designed to measure high temperatures
subtype: #optical_pyrometer__opticalpyrometer__pyroscope a pyrometer that uses the color of the light emitted by a hot object
subtype: #pyrometric_cone a pyrometer consisting of a series of cones that melt at different temperatures
subtype: #radiation_pyrometer__radiationpyrometer a pyrometer for estimating the temperature of distant sources of heat; radiation is focussed on a thermojunction connected in circuit with a galvanometer
subtype: #resistance_pyrometer pyrometer that measures high temperatures by the resistance in a heated wire
subtype: #Reaumur_thermometer an alcohol thermometer calibrated in degrees Reaumur
subtype: #resistance_thermometer__platinum_thermometer thermometer that measures temperature by changes in the resistance of a spiral of platinum wire
subtype: #reversing_thermometer__reversingthermometer a thermometer that registers the temperature in deep waters
subtype: #self-registering_thermometer a thermometer that records the temperature automatically
subtype: #telethermometer a thermometer that registers the temperature at some distant point
subtype: #thermocouple_junction__thermocouple a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference
subtype: #thermoelectric_thermometer__thermel__electricthermometer a thermometer that uses thermoelectric current to measure temperature
subtype: #thermometrograph__thermograph a thermometer that records temperature variations on a graph as a function of time
subtype: #thermopile a kind of thermometer for measuring heat radiation; consists of several thermocouple junctions in series
subtype: #wet-bulb_thermometer a thermometer with a bulb that is covered with moist muslin; used in a psychrometer to measure humidity
subtype: #timepiece__timekeeper a measuring instrument or device for keeping time
subtype: #atomic_clock a timepiece that derives its time scale from the vibration of atoms or molecules
subtype: #ammonia_clock__ammoniaclock an atomic clock based on vibrational frequency of the nitrogen atom in the ammonia molecule
subtype: #caesium_clock__caesiumclock an atomic clock based on the energy difference between two states of the caesium nucleus in a magnetic field
subtype: #clock a timepiece that shows the time of day
subtype: #alarm_clock__alarmclock__alarm a clock that wakes sleeper at preset time
subtype: #Big_Ben clock in the clock tower of the Houses of Parliament, London
subtype: #chronometer an accurate clock (especially used in navigation)
subtype: #cuckoo_clock clock that announces the hours with a sound like the call of the cuckoo
subtype: #electric_clock a clock using a small electric motor
subtype: #pendulum_clock a clock regulated by a pendulum
subtype: #grandfather_clock__grandfatherclock__longcase_clock a pendulum clock enclosed in a tall narrow case
subtype: #system_clock.clock__systemclock a time-of-day clock in a computer system
subtype: #time_clock clock used to record the hours that people work
subtype: #turret_clock a clock with more than one dial to show the time in all directions from a tower
subtype: #wall_clock a clock mounted on a wall
subtype: #water_clock__waterclock__clepsydra__water_glass__waterglas clock that measures time by the escape of water
subtype: #sandglass__sandglas timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage
subtype: #egg_timer__eggtimer a sandglass that runs for three minutes; used to time the boiling of eggs
subtype: #hourglass__hourglas a sandglass that runs for sixty minutes
subtype: #sundial timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial
subtype: #timer a timepiece that measures a time interval and signals its end
subtype: #chronograph an accurate timer for recording time
subtype: #parking_meter__parkingmeter a coin-operated timer located next to a parking space; depositing money into it entitles you to park your car there for a specified length of time
subtype: #stopwatch__stopo_watch__stopowatch a timepiece that can be started or stopped for exact timing (as of a race)
subtype: #ticker__watch a small portable timepiece
subtype: #analog_watch a watch that represents time by the position of hands on a dial
subtype: #digital_watch__digitalwatch a watch with a digital display
subtype: #hunting_watch__huntingwatch__hunter a watch with a hinged metal lid to protect the crystal
subtype: #pendulum_watch (18th century) a watch with a balance wheel having a fake pendulum attached to it
subtype: #pocket_watch a watch that is carried in a small watch pocket
subtype: #stem-winder a watch that is wound by turning a knob at the stem
subtype: #wristwatch__wrist_watch__wristwatch a watch that is worn strapped to the wrist
subtype: #tonometer measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
subtype: #torsion_balance__torsionbalance measuring instrument designed to measure small forces by the torsion they exert on a thin wire
subtype: #variometer a measuring instrument for measuring variations in a magnetic field
subtype: #Venturi_tube a measuring instrument used to measure the rate of flow of a liquid
subtype: #viscometer__viscosimeter a measuring instrument for measuring viscosity
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