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IPC entry: G01L 3/00 Main group [Version 2024.01 (current), Language EN - English]

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Symbol		Title
A		HUMAN NECESSITIES
B		PERFORMING OPERATIONS; TRANSPORTING
C		CHEMISTRY; METALLURGY
D		TEXTILES; PAPER
E		FIXED CONSTRUCTIONS
F		MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G		PHYSICS
G01		MEASURING; TESTING
G01B		MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
G01C		MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effect, propagation time, of radio waves, analogous arrangements using other waves G01S)
G01D		MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01F		MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME [2, 5]
G01G		WEIGHING
G01H		MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES [4]
G01J		MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY [2]
G01K		MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J 5/00)
G01L		MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) [4]
G01L 1/00		Measuring force or stress, in general (measuring force due to impact G01L 5/00) [1, 4, 2006.01]
G01L 3/00		Measuring torque, work, mechanical power, or mechanical efficiency, in general [1, 2006.01]
G01L 3/02		. Rotary-transmission dynamometers [1, 2006.01]
G01L 3/04		. . wherein the torque-transmitting element comprises a torsionally-flexible shaft [1, 2006.01]
G01L 3/06		. . . involving mechanical means for indicating [1, 2006.01]
G01L 3/08		. . . involving optical means for indicating [1, 2006.01]
G01L 3/10		. . . involving electric or magnetic means for indicating [1, 2006.01]
G01L 3/12		. . . . involving photoelectric means [1, 2006.01]
G01L 3/14		. . wherein the torque-transmitting element is other than a torsionally-flexible shaft [1, 2006.01]
G01L 3/16		. Rotary-absorption dynamometers, e.g. of brake type [1, 2006.01]
G01L 3/18		. . mechanically actuated [1, 2006.01]
G01L 3/20		. . fluid actuated [1, 2006.01]
G01L 3/22		. . electrically or magnetically actuated [1, 2006.01]
G01L 3/24		. Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity [1, 2006.01]
G01L 3/26		. Devices for measuring efficiency, i.e. the ratio of power output to power input [1, 2006.01]
G01L 5/00		Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes [1, 2006.01]
G01L 7/00		Measuring fluid pressure
G01L 7/00		Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements (transmitting or indicating the displacement of mechanical pressure-sensitive elements by electric or magnetic means G01L 9/00; measuring differences of two or more pressure values G01L 13/00; measuring two or more pressure values simultaneously G01L 15/00) [1, 2006.01]
G01L 9/00		Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means (measuring differences of two or more pressure values G01L 13/00; measuring two or more pressure values simultaneously G01L 15/00) [1, 2006.01]
G01L 11/00		Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L 7/00 or G01L 9/00 [1, 2006.01]
G01L 13/00		Devices or apparatus for measuring differences of two or more fluid pressure values [1, 2006.01]
G01L 15/00		Devices or apparatus for measuring two or more fluid pressure values simultaneously [1, 2006.01]
G01L 17/00		Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies [1, 2006.01]
G01L 19/00		Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges [1, 2006.01]
G01L 21/00		Vacuum gauges [1, 2006.01]
G01L 23/00
G01L 23/00		Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid [1, 2006.01]
G01L 25/00		Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency [1, 2, 2006.01]
G01L 27/00		Testing or calibrating of apparatus for measuring fluid pressure [1, 2, 2006.01]
G01M		TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
G01N		INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
G01P		MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT; INDICATING DIRECTION OF MOVEMENT (measuring angular rate using gyroscopic effects G01C 19/00; combined measuring devices for measuring two or more variables of movement G01C 23/00; measuring velocity of sound G01H 5/00; measuring velocity of light G01J 7/00; determining direction or velocity of solid objects by reflection or reradiation of radio or other waves and based on propagation effects, e.g. Doppler effect, propagation time or direction of propagation, G01S; measuring speed of nuclear radiation G01T)
G01Q		SCANNING-PROBE TECHNIQUES OR APPARATUS; APPLICATIONS OF SCANNING-PROBE TECHNIQUES, e.g. SCANNING-PROBE MICROSCOPY [SPM] [2010.01]
G01R		MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J 3/12)
G01S		RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
G01T		MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N 23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J 47/00)
G01V		GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B 29/02) [4, 6]
G01W		METEOROLOGY (radar, sonar, lidar or analogous systems, designed for meteorological use G01S 13/95, G01S 15/88, G01S 17/95)
G02		OPTICS
G03		PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY [4]
G04		HOROLOGY
G05		CONTROLLING; REGULATING
G06		COMPUTING; CALCULATING OR COUNTING
G07		CHECKING-DEVICES
G08		SIGNALLING
G09		EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G10		MUSICAL INSTRUMENTS; ACOUSTICS
G11		INFORMATION STORAGE
G12		INSTRUMENT DETAILS
G16		INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS [2018.01]
G21		NUCLEAR PHYSICS; NUCLEAR ENGINEERING
G99		SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
H		ELECTRICITY

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