G
SECTION G — PHYSICS
  
INSTRUMENTS
 G01
MEASURING (counting G06M); TESTING
 G01B
MEASURING LENGTH, THICKNESS, OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS (measuring human body, see the relevant places, where such exist, e.g. A41H 1/00, A43D 1/02, A61B 5/10; measuring appliances combined with walking-sticks A45B 3/08; sorting according to dimensions B07; tool-setting or drawing instruments not specially modified for measuring B23B 49/00, B23Q 15/00-B23Q 17/00, B43L; combinations of measuring devices with writing-appliances B43K 29/08; geodetical, nautical or aeronautical measuring, surveying, rangefinding G01C; photogrammetry G01C 11/00; measuring force or stress, in general G01L 1/00; investigating or analysing particle size, investigating or analysing surface area of porous material G01N; measuring position, distance or direction, in general, by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; geophysical measuring G01V; measuring length or roll diameter of film in cameras or projectors G03B 1/60; combinations of measuring devices with means for controlling or regulating G05; methods or arrangements for converting the position of a manually-operated writing or tracing member into an electrical signal G06K 11/00; measuring elapsed travel of recording medium in recording or playback equipment, sensing diameter of record in autochange gramophones G11B; means structurally associated with electric rotary current collectors for indicating brush wear H01R 39/58; indicating consumption of electrodes in arc lamps H05B 31/34)
 G01B

Note(s)

  1. This subclass covers measuring of position or displacement in terms of linear or angular dimensions. [4]
  2. In this subclass, the groups are distinguished by the means of measurement which is of major importance. Thus the mere application of other means for giving a final indication does not affect the classification.
  3. Attention is drawn to the Notes following the title of class G01.
  4. Machines operated on similar principles to the hand-held devices specified in this subclass are classified with these devices.

 G01C
MEASURING DISTANCES, LEVELS, OR BEARINGS, FOR SURVEYING OR NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY (measuring dimensions or angles of objects G01B; measuring liquid level G01F; measuring intensity or direction of magnetic fields, other than the earth's field, in general G01R; measuring by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; optical systems therefor G02B; maps, globes G09B)
 G01C

Note(s)

  1. In this subclass, the following term is used with the meaning indicated:
    • "navigation" means determining the position and course of land vehicles, ships, aircraft, and space vehicles.
  2. Attention is drawn to the Notes following the title of class G01.

 G01D
INDICATING OR RECORDING IN CONNECTION WITH MEASURING IN GENERAL; DEVICES OR INSTRUMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUB-CLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR (means structurally associated with lightning or other overvoltage discharging apparatus for recording the operation thereof G01R; displaying information in general G09F; recording in a way which requires playback through a transducer G11B)
 G01D

Note(s)

  1. This subclass covers:
    • devices for indicating or recording the results of measurements, not peculiar to variables covered by a single other subclass;
    • analogous apparatus but in which the input is not a variable to be measured, e.g. a hand operation;
    • details of measuring instruments, which are of general interest;
    • measurement transducers not adapted solely for the measurement of a single specified variable and not provided for elsewhere;
    • measuring or testing not otherwise provided for.
  2. Attention is drawn to the Notes following the title of class G01.

 G01F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME (measuring or recording blood flow A61B 5/02, A61B 8/06; burettes or pipettes B01L 3/02; arrangements of liquid volume meters or volume-flow meters in liquid-delivering apparatus, e.g. for retail sale purposes, B67D 5/16; pumps, fluid motors, details common to measuring or metering devices and pumps or fluid motors F01-F04; measuring position, direction or velocity using reflection or reradiation of radiowaves or other waves, in general G01S)  [2]
 G01F

Note(s)

Attention is drawn to the Notes following the title of class G01.


 G01G
WEIGHING (sorting by weighing B07C 5/16)
 G01G

Note(s)

Attention is drawn to the Notes following the title of class G01.


 G01H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES (generation of mechanical vibrations without measurement B06B, G10, H04R; measuring position, direction or velocity of an object G01C, G01S; transducers per se, see the relevant subclasses, e.g. G01L, H01L, H04R; determining unbalance G01M 1/14; determining properties of material by sonic or ultrasonic waves transmitted therethrough G01N; imaging of objects using sonar G01S 15/00; seismology, seismic prospecting, acoustic prospecting G01V 1/00; acousto-optical devices per se G02F; obtaining records by techniques analogous to photography using ultrasonic, sonic or infrasonic waves G03B 42/06; speech analysis or synthesis, speech recognition G10L; information storage based on relative movement between record carrier and transducer G11B; manufacture of electromechanical resonators by processes which include measurement of frequency with consequential modification of the resonator H03H 3/00; pictorial communication using ultrasonic, sonic or infrasonic waves converted into electric picture-representative signals H04N, e.g. H04N 5/31)  [4]
 G01H

Note(s)

  1. This subclass covers the combination of generation and measurement of mechanical vibrations.
  2. Attention is drawn to the Notes following the title of class G01.

 G01J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, OR PHASE OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)  [2]
 G01J

Note(s)

  1. This subclass covers the detection of the presence or absence of infra-red, visible, or ultra-violet light, not otherwise provided for.
  2. Attention is drawn to the Notes following the title of class G01.

 G01K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (sensing temperature changes for compensating measurements of other variables or for compensing readings of instruments for variations in temperature, see G01D or relevant subclass for variable measured; radiation pyrometry G01J; investigating or analysing materials by use of thermal means G01N 25/00; compound sensitive elements, e.g. bimetallic, G12B 1/02)
 G01K

Note(s)

  1. In this subclass, the following term is used with the meaning indicated:
    • "thermometer" includes thermally-sensitive elements not provided for in other subclasses.
  2. Attention is drawn to the Notes following the title of class G01.

 G01L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (sensing pressure changes for compensating measurements of other variables or for compensating readings of instruments for variations in pressure, see G01D or other relevant subclasses for the variable measured; weighing G01G)  [4]
 G01L

Note(s)

Attention is drawn to the Notes following the title of class G01.


 G01M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
 G01M

Note(s)

Attention is drawn to the Notes following the title of class G01.


 G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (separating components of materials in general B01D, B01J, B03, B07; apparatus fully provided for in a single other subclass, see the relevant subclass, e.g. B01L; measuring or testing processes other than immunoassay, involving enzymes or micro-organisms C12M, C12Q; investigation of foundation soil in situ E02D 1/00; sensing humidity changes for compensating measurements of other variables or for compensating readings of instruments for variations in humidity, see G01D or the relevant subclass for variable measured; testing or determining the properties of structures G01M; measuring or investigating electric or magnetic properties of materials G01R; systems or methods in general, using reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; determining sensitivity, graininess, or density of photographic materials G03C 5/02; testing component parts of nuclear reactors G21C 17/00)
 G01N

Note(s)

  1. In this subclass, the following terms are used with the meanings indicated:
    • "investigating" means testing or determining;
    • "materials" includes solid, liquid or gaseous media, e.g. the atmosphere.
  2. Attention is drawn to the Notes following the title of class G01.

 G01P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT (measuring or recording blood flow A61B 5/02, A61B 8/06; monitoring speed or deceleration of electrically-propelled vehicles B60L 3/00; vehicle lighting systems adapted to indicate speed B60Q 1/54; determining position or course in navigation, measuring ground distance in geodesy or surveying G01C; combined measuring devices for measuring two or more variables of movement G01C 23/00; measuring velocity of sound G01H; measuring velocity of light G01J 7/00; measuring direction or velocity of solid objects by reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; measuring speed of nuclear radiation G01T; measuring acceleration of gravity G01V)
 G01P

Note(s)

  1. This subclass covers measuring direction or velocity of flowing fluids using propagation effects of radiowaves or other waves caused in the fluid itself, e.g. by laser anemometer, by ultrasonic flowmeter with "sing-around-system". [4]
  2. Attention is drawn to the Notes following the title of class G01.

 G01R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (measuring physical variables of any kind by conversion into electric variables, see Note (4) following the title of class G01; measuring diffusion of ions in an electric field, e.g. electrophoresis, electro-osmosis, G01N; investigating non-electric or non-magnetic properties of materials by using electric or magnetic methods G01N; indicating correct tuning of resonant circuits H03J 3/12; monitoring electronic pulse counters H03K 21/40; monitoring operation of communication systems H04)
 G01R

Note(s)

  1. This subclass covers:
    • measuring all kinds of electric or magnetic variables directly or by derivation from other electric or magnetic variables;
    • measuring all kinds of electric or magnetic properties of materials;
    • testing electric or magnetic devices, apparatus or networks (e.g. discharge tubes, amplifiers) or measuring their characteristics;
    • indicating presence or sign of current or voltage;
    • equipment for generating signals to be used for carrying out such tests and measurements.
  2. In this subclass, the following terms or expressions are used with the meanings indicated:
    • "measuring" includes investigating;
    • "instruments" or "measuring instruments" means electro-mechanical measuring mechanisms;
    • "arrangements for measuring" means apparatus, circuits, or methods for measuring;
  3. Attention is drawn to the Notes following the title of class G01.
  4. In this subclass, group G01R 17/00 takes precedence over groups G01R 19/00-G01R 31/00.

 G01S
RADIO DIRECTION-FINDING, LOCATING, DISTANCE OR VELOCITY MEASURING; RADIO NAVIGATION SYSTEMS; ANALOGOUS SYSTEMS EMPLOYING OTHER WAVES (for special applications, see the relevant subclasses, e.g. A61B, G01F, G01N; measuring dimensions or angles of objects G01B; navigation in general G01C; measuring infrasonic, sonic, or ultrasonic vibrations in general G01H; measuring infra-red, visible, or ultra-violet radiation in general G01J; transducers per se, see the relevant subclasses, e.g. G01L, H01L, H04R; measuring direction or velocity of flowing fluids by reception or emission of radiowaves or other waves and based on propagation effects caused in the fluid itself G01P; measuring electric or magnetic variables in general G01R; geophysical applications, detecting masses or objects not involving radar, sonar or analogous methods G01V; aerials H01Q)
 G01S

Note(s)

Attention is drawn to the Notes following the title of class G01 and to Note (1) following the title of subclass G09B.


 G01T
MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N; counters per se G06M, H03K; electric discharge tubes for analysing radiation or particles H01J 40/00, H01J 47/00, H01J 49/00)
 G01T

Note(s)

  1. This subclass covers the measurement of X-radiation, gamma radiation, corpuscular radiation, cosmic radiation, or neutron radiation.
  2. Attention is drawn to the Notes following the title of class G01.

 G01V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS (detecting or locating foreign bodies for diagnostic, surgical or person-identification purposes A61B; means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B 29/02; investigating or analysing earth materials by determining their chemical or physical properties G01N; measuring electric or magnetic variables in general, other than direction or magnitude of the earth's field G01R; electronic or nuclear magnetic resonance arrangements in general G01R 33/20; radar, sonar or analogous methods in general, detecting masses or objects involving these methods G01S)
 G01V

Note(s)

  1. In this subclass, the geophysical methods apply both to the earth and to other celestial objects, e.g. planets.
  2. Attention is drawn to the Notes following the title of class G01.

 G01W
METEOROLOGY (influencing weather conditions A01G 15/00; dispersing fog E01H 13/00; instruments for measuring single variables in general, see the appropriate subclass of class G01, e.g. G01K, G01L; obtaining meteorological information by radar, lidar or sonar G01S)
 G01W

Note(s)

  1. In this subclass, the following term is used with the meaning indicated:
    • "meteorology" includes measurement of certain ambient atmospheric conditions.
  2. Attention is drawn to the Notes following the title of class G01.