1. CPC Sections
  2. CPC Section G
  3. CPC Class G01
  4. CPC Subclass G01B
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CPC
COOPERATIVE PATENT CLASSIFICATION
​​
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS [2023-02]
NOTES

  • This subclass covers measuring of position or displacement in terms of linear or angular dimensions.
  • In this subclass, the groups are distinguished by the measurement technique which is of major importance. Thus, the mere application of other techniques or means for giving a final indication does not affect the classification.
  • Attention is drawn to the Notes following the title of class G01.
  • Machines operated on similar principles to the hand-held devices specified in this subclass are classified with these devices.
  • Measuring arrangements or details thereof covered by two or more of groups G01B 3/00 - G01B 17/00 are classified in group G01B 21/00 if no single other group can be selected as being predominantly applicable.
WARNING

  • {In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.}
G01B 1/00
Measuring instruments characterised by the selection of material therefor [2013-01]
​
G01B 3/00
Measuring instruments characterised by the use of mechanical techniques [2023-02]
NOTE

  • When classifying in this group, mechanical arrangements for measuring specific parameters can be further classified in group G01B 5/00.
G01B 3/002
.
{Details} [2013-01]
G01B 3/004
. .
{Scales; Graduations} [2013-01]
G01B 3/006
. . .
{having both coarse and fine graduation} [2013-01]
G01B 3/008
. .
{Arrangements for controlling the measuring force} [2013-01]
G01B 3/02
.
Rulers with scales or marks for direct reading (measuring tapes G01B 3/10) [2020-01]
G01B 3/04
. .
rigid [2013-01]
G01B 3/06
. . .
folding [2013-01]
G01B 3/08
. . .
extensible [2013-01]
G01B 3/10
.
Measuring tapes [2020-01]
G01B 3/1003
. .
characterised by structure or material; characterised by layout or indicia [2020-01]
G01B 3/1004
. . .
{Measuring tapes without casings} [2020-01]
G01B 3/1005
. .
Means for controlling winding or unwinding of tapes [2020-01]
G01B 3/1007
. . .
Means for locking [2020-01]
G01B 2003/101
. . . .
{acting on the drum} [2020-01]
G01B 2003/1012
. . . .
{engaging the tape in a direction parallel to the tape itself} [2020-01]
G01B 2003/1015
. . . .
{engaging the tape in a direction transversal to the tape itself} [2020-01]
G01B 2003/1017
. . . .
{acting on the whole coil} [2020-01]
G01B 3/102
. . .
Means for damping [2020-01]
G01B 2003/1023
. . .
{Winding mechanisms} [2020-01]
G01B 2003/1025
. . . .
{operated manually, e.g. crank-handles} [2020-01]
G01B 2003/1028
. . . .
{operated by electric motors} [2020-01]
G01B 2003/103
. . . .
{operated by springs} [2020-01]
G01B 2003/1033
. . .
{Means for activating the locking, braking or releasing of the tape, e.g. buttons} [2020-01]
G01B 2003/1035
. . . .
{by pivotal operation} [2020-01]
G01B 2003/1038
. . . .
{by translatory motion operation} [2020-01]
G01B 3/1041
. .
characterised by casings [2020-01]
G01B 3/1043
. . .
Details of internal structure thereof, e.g. means for coupling separately moulded casing halves [2020-01]
G01B 3/1046
. . .
Details of external structure thereof, e.g. shapes for ensuring firmer hold [2020-01]
G01B 3/1048
. . . .
Integrated means for affixing or holding [2020-01]
G01B 2003/1051
. . .
{specially adapted for two or more tapes within the same casing} [2020-01]
G01B 2003/1053
. . .
{Tape exit slots, e.g. shape or exit direction} [2020-01]
G01B 3/1056
. .
Tape end arrangements, e.g. end-hooks [2020-01]
G01B 2003/1058
. .
{Manufacturing or assembling methods} [2020-01]
G01B 3/1061
. .
Means for displaying or assisting reading of length measurement [2020-01]
G01B 2003/1064
. . .
{Windows, e.g. lenses, glasses or cross-hairs} [2020-01]
G01B 2003/1066
. . .
{Index sliding on tape} [2020-01]
G01B 3/1069
. . .
Electronic or mechanical display arrangements [2020-01]
G01B 3/1071
. .
Separate means for supporting or affixing measuring tapes [2020-01]
G01B 2003/1074
. . .
{associated with the casings} [2020-01]
G01B 2003/1076
. . .
{associated with the end-hooks} [2020-01]
G01B 2003/1079
. . .
{associated with the tapes} [2020-01]
G01B 3/1084
. .
Tapes combined with arrangements for functions other than measuring lengths [2020-01]
G01B 2003/1087
. . .
{for illuminating} [2020-01]
G01B 3/1089
. . .
for marking, drawing or cutting [2020-01]
G01B 3/1092
. . .
for performing length measurements and at least one other measurement of a different nature, e.g. bubble-type level [2020-01]
G01B 3/1094
. . .
for recording information or for performing calculations [2020-01]
G01B 2003/1097
. . .
{Tape measures with an adhesive surface} [2020-01]
G01B 3/11
.
Chains for measuring length [2013-01]
G01B 3/12
.
Measuring wheels [2013-01]
G01B 3/14
.
Templates for checking contours {(templates for mounting doors or windows E04F 21/0007)} [2013-01]
G01B 3/16
.
Compasses, i.e. with a pair of pivoted arms [2013-01]
G01B 3/163
. .
{without measuring scale} [2013-01]
G01B 3/166
. .
{provided with a measuring scale} [2013-01]
G01B 3/18
.
Micrometers [2013-01]
G01B 3/20
.
Slide gauges [2013-01]
G01B 3/205
. .
{provided with a counter for digital indication of the measured dimension} [2013-01]
G01B 3/22
.
Feeler-pin gauges, e.g. dial gauges (for measuring contours or curvatures G01B 5/20) [2021-01]
G01B 3/24
. .
with open yoke, i.e. calipers [2013-01]
G01B 3/26
. .
Plug gauges [2013-01]
G01B 3/28
. .
Depth gauges [2013-01]
G01B 3/30
.
Bars, blocks, or strips in which the distance between a pair of faces is fixed, although it may be preadjustable, e.g. end measure, feeler strip [2013-01]
G01B 3/303
. .
{pre-adjustable, e.g. by means of micrometerscrew} [2013-01]
G01B 3/306
. . .
{with inclined slide plane} [2013-01]
G01B 3/32
. .
Holders therefor [2013-01]
G01B 3/34
.
Ring or other apertured gauges, e.g. "go/no-go" gauge [2013-01]
G01B 3/36
. .
for external screw-threads [2013-01]
G01B 3/38
.
Gauges with an open yoke and opposed faces, i.e. calipers, in which the internal distance between the faces is fixed, although it may be preadjustable [2016-08]
G01B 3/40
. .
for external screw-threads [2013-01]
G01B 3/42
. .
of limit-gauge type, i.e. "go/no-go" (G01B 3/40 takes precedence) [2013-01]
G01B 3/44
. . .
preadjustable for wear or tolerance [2013-01]
G01B 3/46
.
Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable [2013-01]
G01B 3/48
. .
for internal screw-threads [2013-01]
G01B 3/50
. .
of limit-gauge type, i.e. "go/no-go" (G01B 3/48 takes precedence) [2013-01]
G01B 3/52
. . .
preadjustable for wear or tolerance [2013-01]
G01B 3/56
.
Gauges for measuring angles or tapers, e.g. conical calipers [2013-01]
G01B 3/563
. .
{Protractors (for use in geodesy G01C 1/00; protractor heads for drawing machines B43L 13/08)} [2013-01]
G01B 3/566
. .
{Squares} [2013-01]
​
G01B 5/00
Measuring arrangements characterised by the use of mechanical techniques [2023-02]
NOTE

  • When classifying in this group, specific mechanical measuring instruments can be further classified in group G01B 3/00.
G01B 5/0002
.
{Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured} [2013-01]
G01B 5/0004
. .
{Supports (G01B 5/025 takes precedence)} [2022-01]
G01B 5/0007
. .
{Surface plates} [2013-01]
G01B 5/0009
. .
{Guiding surfaces; Arrangements compensating for non-linearity there-of} [2013-01]
G01B 5/0011
.
{Arrangements for eliminating or compensation of measuring errors due to temperature or weight} [2013-01]
G01B 5/0014
. .
{due to temperature (on machine tools B23Q 11/0003)} [2013-01]
G01B 5/0016
. .
{due to weight (on machine tools B23Q 11/001)} [2013-01]
G01B 5/0018
.
{for measuring key-ways} [2013-01]
G01B 5/0021
.
{for measuring the volumetric dimension of an object} [2013-01]
G01B 5/0023
.
{Measuring of sport goods, e.g. bowling accessories, golfclubs, game balls} [2013-01]
G01B 5/0025
.
{Measuring of vehicle parts (G01B 5/003 takes precedence)} [2013-01]
G01B 5/0028
. .
{Brakes, brakeshoes, clutches} [2013-01]
G01B 5/003
.
{Measuring of motor parts} [2013-01]
G01B 5/0032
. .
{Valves, actuating devices for valves} [2013-01]
G01B 5/0035
.
{Measuring of dimensions of trees} [2013-01]
G01B 5/0037
.
{Measuring of dimensions of welds} [2013-01]
G01B 5/004
.
for measuring coordinates of points [2013-01]
G01B 5/008
. .
using coordinate measuring machines [2013-01]
G01B 5/012
. . .
Contact-making feeler heads therefor [2013-01]
G01B 5/016
. . . .
Constructional details of contacts [2013-01]
G01B 5/02
.
for measuring length, width or thickness (G01B 5/004, G01B 5/08 take precedence) [2013-01]
G01B 5/025
. .
{Measuring of circumference; Measuring length of ring-shaped articles (G01B 5/0035 takes precedence)} [2013-01]
G01B 5/04
. .
specially adapted for measuring length or width of objects while moving [2013-01]
G01B 5/043
. . .
{for measuring length} [2013-01]
G01B 5/046
. . .
{for measuring width} [2013-01]
G01B 5/06
. .
for measuring thickness [2013-01]
G01B 5/061
. . .
{height gauges} [2013-01]
G01B 5/063
. . . .
{provided with a slide which may be moved along a vertical support by means of a micrometer screw} [2013-01]
G01B 5/065
. . . .
{provided with a slide which may be fixed along its vertical support in discrete calibrated position} [2013-01]
G01B 5/066
. . .
{of coating} [2013-01]
G01B 5/068
. . .
{of objects while moving (G01B 5/066 takes precedence)} [2013-01]
G01B 5/08
.
for measuring diameters {(G01B 5/0035 takes precedence; measuring radius of curvature G01B 5/213)} [2013-01]
G01B 5/10
. .
of objects while moving [2013-01]
G01B 5/12
. .
internal diameters [2013-01]
G01B 5/14
.
for measuring distance or clearance between spaced objects or spaced apertures (G01B 5/24 takes precedence) [2013-01]
G01B 5/143
. .
{between holes on a workpiece} [2013-01]
G01B 5/146
. .
{measuring play on bearings} [2013-01]
G01B 5/16
. .
between a succession of regularly spaced objects or regularly spaced apertures [2013-01]
G01B 5/163
. . .
{of screw-threads} [2013-01]
G01B 5/166
. . .
{of gear teeth} [2013-01]
G01B 5/18
.
for measuring depth [2013-01]
G01B 5/20
.
for measuring contours or curvatures [2013-01]
G01B 5/201
. .
{for measuring roundness} [2013-01]
G01B 5/202
. .
{of gears} [2013-01]
G01B 5/204
. .
{of screw-threads} [2013-01]
G01B 5/205
. .
{of turbine blades or propellers} [2013-01]
G01B 5/207
. .
using a plurality of fixed, simultaneously operating transducers (G01B 5/213 - G01B 5/22 take precedence) [2016-05]
G01B 5/213
. .
for measuring radius of curvature [2013-01]
G01B 5/22
. .
Spherometers [2013-01]
G01B 5/24
.
for measuring angles or tapers; for testing the alignment of axes [2021-01]
G01B 5/241
. .
{for measuring conicity} [2013-01]
G01B 5/242
. .
{Sine bars; Sine plates} [2013-01]
G01B 5/243
. .
{for measuring chamfer (see G01B 3/56)} [2013-01]
G01B 5/245
. .
for testing perpendicularity [2013-01]
G01B 5/25
. .
for testing the alignment of axes [2013-01]
G01B 5/252
. . .
for measuring eccentricity, i.e. lateral shift between two parallel axes [2013-01]
G01B 5/255
. .
for testing wheel alignment [2013-01]
G01B 5/26
.
for measuring areas, e.g. planimeters [2023-02]
G01B 5/28
.
for measuring roughness or irregularity of surfaces [2013-01]
G01B 5/285
. .
{for controlling eveness} [2013-01]
G01B 5/30
.
for measuring the deformation in a solid, e.g. mechanical strain gauge [2013-01]
G01B 7/00
Measuring arrangements characterised by the use of electric or magnetic techniques [2023-02]
G01B 7/001
.
{Constructional details of gauge heads (G01B 7/012 takes precedence)} [2013-01]
G01B 7/002
.
{Constructional details of contacts for gauges actuating one or more contacts (G01B 7/016 takes precedence)} [2013-01]
G01B 7/003
.
{for measuring position, not involving coordinate determination (coordinate measuring G01B 7/004)} [2013-01]
G01B 7/004
.
for measuring coordinates of points [2013-01]
G01B 7/008
. .
using coordinate measuring machines [2013-01]
G01B 7/012
. . .
Contact-making feeler heads therefor [2013-01]
G01B 7/016
. . . .
Constructional details of contacts [2013-01]
G01B 7/02
.
for measuring length, width or thickness (G01B 7/004, G01B 7/12 take precedence) [2013-01]
G01B 7/023
. .
{for measuring distance between sensor and object (G01B 7/082 and G01B 7/102 take precedence)} [2013-01]
G01B 7/026
. .
{for measuring length of cable, band or the like, which has been paid out, e.g. from a reel (measuring length of objects while moving G01B 7/04)} [2013-01]
G01B 7/04
. .
specially adapted for measuring length or width of objects while moving [2013-01]
G01B 7/042
. . .
{for measuring length} [2013-01]
G01B 7/044
. . . .
{using capacitive means} [2013-01]
G01B 7/046
. . . .
{using magnetic means} [2013-01]
G01B 7/048
. . .
{for measuring width} [2013-01]
G01B 7/06
. .
for measuring thickness {(measuring during the manufacture of coatings C23C 14/54)} [2013-01]
G01B 7/063
. . .
{using piezoelectric resonators} [2023-08]
G01B 7/066
. . . .
{for measuring thickness of coating (apparatus or processes for the manufacture of piezoelectric or electrostrictive resonators for obtaining desired frequency H03H 3/04)} [2023-08]
G01B 7/08
. . .
{using capacitive means} [2016-05]
G01B 7/082
. . . .
{Height gauges} [2013-01]
G01B 7/085
. . . .
{for measuring thickness of coating} [2013-01]
G01B 7/087
. . . .
{for measuring of objects while moving (G01B 7/085 takes precedence)} [2013-01]
G01B 7/10
. . .
{using magnetic means, e.g. by measuring change of reluctance} [2016-05]
G01B 7/102
. . . .
{Height gauges} [2013-01]
G01B 7/105
. . . .
{for measuring thickness of coating} [2013-01]
G01B 7/107
. . . .
{for measuring objects while moving (G01B 7/105 takes precedence)} [2013-01]
G01B 7/12
.
for measuring diameters [2013-01]
G01B 7/125
. .
{of objects while moving} [2013-01]
G01B 7/13
. .
Internal diameters [2013-01]
G01B 7/14
.
for measuring distance or clearance between spaced objects or spaced apertures (G01B 7/30 takes precedence) [2013-01]
G01B 7/142
. .
{between holes on a workpiece} [2013-01]
G01B 7/144
. .
{Measuring play on bearings} [2013-01]
G01B 7/146
. .
{Measuring on gear teeth} [2013-01]
G01B 7/148
. .
{Measuring on screw threads} [2013-01]
G01B 7/15
. .
being regularly spaced [2013-01]
G01B 7/16
.
for measuring the deformation in a solid, e.g. by resistance strain gauge [2021-01]
G01B 7/18
. .
{using change in resistance} [2015-10]
G01B 7/20
. . .
{formed by printed-circuit technique} [2015-10]
G01B 7/22
. .
{using change in capacitance} [2015-10]
G01B 7/24
. .
using change in magnetic properties [2013-01]
G01B 7/26
.
for measuring depth [2013-01]
G01B 7/28
.
for measuring contours or curvatures [2013-01]
G01B 7/281
. .
{for measuring contour or curvature along an axis, e.g. axial curvature of a pipeline or along a series of feeder rollers} [2013-01]
G01B 7/282
. .
{for measuring roundness} [2013-01]
G01B 7/283
. .
{of gears} [2013-01]
G01B 7/284
. .
{of screw-threads} [2013-01]
G01B 7/285
. .
{of propellers or turbine blades} [2013-01]
G01B 7/286
. .
{Spherometers} [2013-01]
G01B 7/287
. .
using a plurality of fixed, simultaneously operating transducers (G01B 7/293 takes precedence) [2013-01]
G01B 7/293
. .
for measuring radius of curvature [2013-01]
G01B 7/30
.
for measuring angles or tapers; for testing the alignment of axes [2013-01]
G01B 7/305
. .
for testing perpendicularity [2013-01]
G01B 7/31
. .
for testing the alignment of axes [2013-01]
G01B 7/312
. . .
for measuring eccentricity, i.e. lateral shift between two parallel axes [2013-01]
G01B 7/315
. .
for testing wheel alignment [2013-01]
G01B 7/32
.
for measuring areas [2023-02]
G01B 7/34
.
for measuring roughness or irregularity of surfaces [2013-01]
G01B 7/345
. .
{for measuring evenness} [2013-01]
​
G01B 9/00
Measuring instruments characterised by the use of optical techniques [2023-02]
NOTE

  • When classifying in this group, optical arrangements for measuring specific parameters can be further classified in group G01B 11/00.
G01B 9/02
.
Interferometers [2022-01]
G01B 9/02001
. .
characterised by controlling or generating intrinsic radiation properties [2022-01]
G01B 9/02002
. . .
using two or more frequencies [2022-01]
G01B 9/02003
. . . .
using beat frequencies [2022-01]
G01B 9/02004
. . . .
using frequency scans [2022-01]
G01B 9/02005
. . . .
{using discrete frequency stepping or switching} [2022-01]
G01B 9/02007
. . .
{Two or more frequencies or sources used for interferometric measurement (using only beat G01B 9/02003)} [2022-01]
G01B 9/02008
. . . .
{by using a frequency comb} [2022-01]
G01B 9/02009
. . . .
{by using two or more low coherence lengths using different or varying spectral width} [2022-01]
G01B 9/0201
. . .
{using temporal phase variation} [2022-01]
G01B 9/02011
. . .
{using temporal polarization variation} [2022-01]
G01B 9/02012
. . .
{using temporal intensity variation} [2022-01]
G01B 9/02014
. . . .
{by using pulsed light} [2022-01]
G01B 9/02015
. .
characterised by the beam path configuration [2022-01]
G01B 9/02016
. . .
{contacting two or more objects} [2022-01]
G01B 9/02017
. . .
with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations [2022-01]
G01B 9/02018
. . . .
Multipass interferometers, e.g. double-pass [2022-01]
G01B 9/02019
. . . .
{contacting different points on same face of object} [2022-01]
G01B 9/02021
. . . .
{contacting different faces of object, e.g. opposite faces} [2022-01]
G01B 9/02022
. . .
{contacting one object by grazing incidence} [2022-01]
G01B 9/02023
. . .
{Indirect probing of object, e.g. via influence on cavity or fibre} [2022-01]
G01B 9/02024
. . .
{Measuring in transmission, i.e. light traverses the object} [2022-01]
G01B 9/02025
. . .
{Interference between three or more discrete surfaces} [2022-01]
G01B 9/02027
. . .
{Two or more interferometric channels or interferometers} [2022-01]
G01B 9/02028
. . . .
{Two or more reference or object arms in one interferometer} [2022-01]
G01B 9/02029
. . .
{Combination with non-interferometric systems, i.e. for measuring the object} [2022-01]
G01B 9/0203
. . . .
{With imaging systems} [2022-01]
G01B 9/02031
. . . .
{With non-optical systems, e.g. tactile} [2022-01]
G01B 9/02032
. . .
{generating a spatial carrier frequency, e.g. by creating lateral or angular offset between reference and object beam (shearing interferometers G01B 9/02098)} [2022-01]
G01B 9/02034
. .
{characterised by particularly shaped beams or wavefronts} [2013-01]
G01B 9/02035
. . .
{Shaping the focal point, e.g. elongated focus} [2013-01]
G01B 9/02036
. . . .
{by using chromatic effects, e.g. a wavelength dependent focal point} [2013-01]
G01B 9/02037
. . . .
{by generating a transverse line focus} [2013-01]
G01B 9/02038
. . .
{Shaping the wavefront, e.g. generating a spherical wavefront} [2013-01]
G01B 9/02039
. . . .
{by matching the wavefront with a particular object surface shape} [2013-01]
G01B 9/02041
. .
{characterised by particular imaging or detection techniques} [2013-01]
G01B 9/02042
. . .
{Confocal imaging} [2013-01]
G01B 9/02043
. . .
{Imaging of the Fourier or pupil or back focal plane, i.e. angle resolved imaging} [2013-01]
G01B 9/02044
. . .
{Imaging in the frequency domain, e.g. by using a spectrometer} [2013-01]
G01B 9/02045
. . .
{using the Doppler effect} [2013-01]
G01B 9/02047
. . .
{using digital holographic imaging, e.g. lensless phase imaging without hologram in the reference path} [2013-01]
G01B 9/02048
. . .
{Rough and fine measurement} [2013-01]
G01B 9/02049
. .
{characterised by particular mechanical design details} [2013-01]
G01B 9/0205
. . .
{of probe head} [2013-01]
G01B 9/02051
. . .
{Integrated design, e.g. on-chip or monolithic} [2013-01]
G01B 9/02052
. . .
{Protecting, e.g. shock absorbing, arrangements} [2013-01]
G01B 9/02054
. . .
{Hand held} [2013-01]
G01B 9/02055
. .
Reduction or prevention of errors; Testing; Calibration [2022-01]
G01B 9/02056
. . .
Passive reduction of errors [2022-01]
G01B 9/02057
. . . .
{by using common path configuration, i.e. reference and object path almost entirely overlapping} [2022-01]
G01B 9/02058
. . . .
{by particular optical compensation or alignment elements, e.g. dispersion compensation} [2022-01]
G01B 9/02059
. . . .
{Reducing effect of parasitic reflections, e.g. cyclic errors} [2022-01]
G01B 9/02061
. . . .
Reduction or prevention of effects of tilts or misalignment [2022-01]
G01B 9/02062
. . .
{Active error reduction, i.e. varying with time} [2022-01]
G01B 9/02063
. . . .
{by particular alignment of focus position, e.g. dynamic focussing in optical coherence tomography} [2022-01]
G01B 9/02064
. . . .
{by particular adjustment of coherence gate, i.e. adjusting position of zero path difference in low coherence interferometry} [2022-01]
G01B 9/02065
. . . . .
{using a second interferometer before or after measuring interferometer} [2022-01]
G01B 9/02067
. . . .
{by electronic control systems, i.e. using feedback acting on optics or light} [2022-01]
G01B 9/02068
. . . . .
{Auto-alignment of optical elements} [2022-01]
G01B 9/02069
. . . . .
{Synchronization of light source or manipulator and detector} [2022-01]
G01B 9/0207
. . .
{Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer} [2022-01]
G01B 9/02071
. . . .
{by measuring path difference independently from interferometer} [2022-01]
G01B 9/02072
. . . .
{by calibration or testing of interferometer} [2022-01]
G01B 9/02074
. . . . .
{of the detector} [2022-01]
G01B 9/02075
. . .
{of particular errors} [2022-01]
G01B 9/02076
. . . .
{Caused by motion} [2022-01]
G01B 9/02077
. . . . .
{of the object} [2022-01]
G01B 9/02078
. . . .
{Caused by ambiguity} [2022-01]
G01B 9/02079
. . . . .
{Quadrature detection, i.e. detecting relatively phase-shifted signals} [2022-01]
G01B 9/02081
. . . . . .
{simultaneous quadrature detection, e.g. by spatial phase shifting} [2022-01]
G01B 9/02082
. . . .
{Caused by speckles} [2022-01]
G01B 9/02083
. .
{characterised by particular signal processing and presentation} [2013-01]
G01B 9/02084
. . .
{Processing in the Fourier or frequency domain when not imaged in the frequency domain} [2013-01]
G01B 9/02085
. . .
{Combining two or more images of different regions} [2013-01]
G01B 9/02087
. . .
{Combining two or more images of the same region} [2013-01]
G01B 9/02088
. . .
{Matching signals with a database} [2013-01]
G01B 9/02089
. . .
{Displaying the signal, e.g. for user interaction} [2013-01]
G01B 9/0209
. .
Low-coherence interferometers [2022-01]
G01B 9/02091
. . .
Tomographic interferometers, e.g. based on optical coherence [2022-01]
G01B 9/02092
. .
{Self-mixing interferometers, i.e. feedback of light from object into laser cavity} [2013-01]
G01B 9/02094
. .
{Speckle interferometers, i.e. for detecting changes in speckle pattern} [2013-01]
G01B 9/02095
. . .
{detecting deformation from original shape} [2013-01]
G01B 9/02096
. . .
{detecting a contour or curvature} [2013-01]
G01B 9/02097
. .
Self-interferometers [2022-01]
G01B 9/02098
. . .
Shearing interferometers [2022-01]
G01B 9/021
. .
using holographic techniques [2013-01]
G01B 9/023
. . .
for contour producing (G01B 9/025 - G01B 9/029 take precedence) [2016-05]
G01B 9/025
. . .
Double exposure technique [2013-01]
G01B 9/027
. . .
in real time [2013-01]
G01B 9/029
. . .
by time averaging [2013-01]
G01B 9/04
.
Measuring microscopes [2021-01]
G01B 9/06
.
Measuring telescopes [2021-01]
G01B 9/08
.
Optical projection comparators [2013-01]
G01B 9/10
.
Goniometers for measuring angles between surfaces [2013-01]
​
G01B 11/00
Measuring arrangements characterised by the use of optical techniques [2023-02]
NOTE

  • When classifying in this group, specific optical measuring instruments can be further classified in group G01B 9/00.
G01B 11/002
.
{for measuring two or more coordinates} [2013-01]
G01B 11/005
. .
{coordinate measuring machines} [2013-01]
G01B 11/007
. . .
{feeler heads therefor} [2013-01]
G01B 11/02
.
for measuring length, width or thickness (G01B 11/08 takes precedence) [2013-01]
G01B 11/022
. .
{by means of tv-camera scanning} [2013-01]
G01B 11/024
. .
{by means of diode-array scanning} [2013-01]
G01B 11/026
. .
{by measuring distance between sensor and object (G01B 11/0608 takes precedence)} [2013-01]
G01B 11/028
. .
{by measuring lateral position of a boundary of the object (G01B 11/022, G01B 11/024, G01B 11/04 take precedence)} [2013-01]
G01B 11/03
. .
by measuring coordinates of points [2013-01]
G01B 11/04
. .
specially adapted for measuring length or width of objects while moving [2013-01]
G01B 11/043
. . .
{for measuring length} [2013-01]
G01B 11/046
. . .
{for measuring width} [2013-01]
G01B 11/06
. .
for measuring thickness {; e.g. of sheet material (thickness measurement by thermal means G01B 21/085)} [2021-01]
G01B 11/0608
. . .
{Height gauges} [2013-01]
G01B 11/0616
. . .
{of coating} [2013-01]
G01B 11/0625
. . . .
{with measurement of absorption or reflection} [2013-01]
G01B 11/0633
. . . . .
{using one or more discrete wavelengths} [2013-01]
G01B 11/0641
. . . .
{with measurement of polarization} [2013-01]
G01B 11/065
. . . . .
{using one or more discrete wavelengths} [2013-01]
G01B 11/0658
. . . .
{with measurement of emissivity or reradiation} [2013-01]
G01B 11/0666
. . . .
{using an exciting beam and a detection beam including surface acoustic waves [SAW]} [2013-01]
G01B 11/0675
. . . .
{using interferometry} [2013-01]
G01B 11/0683
. . . .
{measurement during deposition or removal of the layer} [2013-01]
G01B 11/0691
. . .
{of objects while moving (G01B 11/0616 takes precedence)} [2013-01]
G01B 11/08
.
for measuring diameters [2013-01]
G01B 11/10
. .
of objects while moving [2013-01]
G01B 11/105
. . .
{using photoelectric detection means} [2013-01]
G01B 11/12
. .
internal diameters [2013-01]
G01B 11/14
.
for measuring distance or clearance between spaced objects or spaced apertures (G01B 11/26 takes precedence; rangefinders G01C 3/00) [2021-01]
G01B 11/16
.
for measuring the deformation in a solid, e.g. optical strain gauge [2013-01]
G01B 11/161
. .
{by interferometric means} [2013-01]
G01B 11/162
. . .
{by speckle- or shearing interferometry} [2013-01]
G01B 11/164
. . .
{by holographic interferometry} [2013-01]
G01B 11/165
. .
{by means of a grating deformed by the object} [2013-01]
G01B 11/167
. .
{by projecting a pattern on the object} [2013-01]
G01B 11/168
. .
{by means of polarisation} [2013-01]
G01B 11/18
. .
{using photoelastic elements} [2015-10]
G01B 11/20
. .
{using brittle lacquer} [2015-10]
G01B 11/22
.
for measuring depth [2013-01]
G01B 11/24
.
for measuring contours or curvatures [2013-01]
G01B 11/2408
. .
{for measuring roundness} [2013-01]
G01B 11/2416
. .
{of gears (optical projection profile comparators G01B 9/08)} [2013-01]
G01B 11/2425
. .
{of screw-threads} [2013-01]
G01B 11/2433
. .
{for measuring outlines by shadow casting} [2013-01]
G01B 11/2441
. .
{using interferometry} [2013-01]
G01B 11/245
. .
using a plurality of fixed, simultaneously operating transducers ({G01B 11/2408 - G01B 11/2425, } G01B 11/255 take precedence) [2016-05]
G01B 11/25
. .
by projecting a pattern, e.g. {one or more lines,} moiré fringes on the object (G01B 11/255 takes precedence {; image analysis for depth or shape recovery G06T 7/50}) [2021-01]
G01B 11/2504
. . .
{Calibration devices} [2013-01]
G01B 11/2509
. . .
{Color coding} [2013-01]
G01B 11/2513
. . .
{with several lines being projected in more than one direction, e.g. grids, patterns} [2013-01]
G01B 11/2518
. . .
{Projection by scanning of the object} [2013-01]
G01B 11/2522
. . . .
{the position of the object changing and being recorded} [2013-01]
G01B 11/2527
. . . .
{with phase change by in-plane movement of the patern} [2013-01]
G01B 11/2531
. . .
{using several gratings, projected with variable angle of incidence on the object, and one detection device} [2013-01]
G01B 11/2536
. . .
{using several gratings with variable grating pitch, projected on the object with the same angle of incidence} [2013-01]
G01B 11/254
. . .
{Projection of a pattern, viewing through a pattern, e.g. moiré} [2017-01]
G01B 11/2545
. . .
{with one projection direction and several detection directions, e.g. stereo} [2013-01]
G01B 11/255
. .
for measuring radius of curvature {(measuring diameter G01B 11/08)} [2013-01]
G01B 11/26
.
for measuring angles or tapers; for testing the alignment of axes [2013-01]
G01B 11/27
. .
for testing the alignment of axes {(means for centering or aligning a light guide within a ferrule G02B 6/3834)} [2013-01]
G01B 11/272
. . .
{using photoelectric detection means} [2013-01]
G01B 11/275
. .
for testing wheel alignment [2013-01]
G01B 11/2755
. . .
{using photoelectric detection means} [2013-01]
G01B 11/28
.
for measuring areas [2023-02]
G01B 11/285
. .
{using photoelectric detection means} [2013-01]
G01B 11/30
.
for measuring roughness or irregularity of surfaces [2013-01]
G01B 11/303
. .
{using photoelectric detection means} [2013-01]
G01B 11/306
. .
{for measuring evenness} [2013-01]
G01B 13/00
Measuring arrangements characterised by the use of fluids [2023-02]
G01B 13/02
.
for measuring length, width or thickness (G01B 13/08 takes precedence) [2013-01]
G01B 13/03
. .
by measuring coordinates of points [2013-01]
G01B 13/04
. .
specially adapted for measuring length or width of objects while moving [2013-01]
G01B 13/06
. .
for measuring thickness [2021-01]
G01B 13/065
. . .
{Height gauges} [2013-01]
G01B 13/08
.
for measuring diameters [2013-01]
G01B 13/10
. .
internal diameters [2013-01]
G01B 13/12
.
for measuring distance or clearance between spaced objects or spaced apertures (G01B 13/18 takes precedence) [2013-01]
G01B 13/14
.
for measuring depth [2013-01]
G01B 13/16
.
for measuring contours or curvatures [2013-01]
G01B 13/18
.
for measuring angles or tapers; for testing the alignment of axes [2013-01]
G01B 13/19
. .
for testing the alignment of axes [2013-01]
G01B 13/195
. .
for testing wheel alignment [2013-01]
G01B 13/20
.
for measuring areas, e.g. pneumatic planimeters [2023-02]
G01B 13/22
.
for measuring roughness or irregularity of surfaces [2013-01]
G01B 13/24
.
for measuring the deformation in a solid [2013-01]
G01B 15/00
Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons (characterised by the use of optical techniques G01B 9/00, G01B 11/00) [2023-02]
G01B 15/02
.
for measuring thickness [2013-01]
G01B 15/025
. .
{by measuring absorption} [2013-01]
G01B 15/04
.
for measuring contours or curvatures [2013-01]
G01B 15/045
. .
{by measuring absorption} [2013-01]
G01B 15/06
.
for measuring the deformation in a solid [2013-01]
G01B 15/08
.
for measuring roughness or irregularity of surfaces [2013-01]
G01B 17/00
Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations [2023-02]
G01B 17/02
.
for measuring thickness [2013-01]
G01B 17/025
. .
{for measuring thickness of coating} [2013-01]
G01B 17/04
.
for measuring the deformation in a solid, e.g. by vibrating string [2013-01]
G01B 17/06
.
for measuring contours or curvatures [2013-01]
G01B 17/08
.
for measuring roughness or irregularity of surfaces [2013-01]
​
G01B 21/00
Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant [2024-01]
NOTE

  • {Measuring arrangements or details thereof covered by two or more of groups G01B 3/00 - G01B 17/00 are classified in this group if no single other group can be selected as being predominantly applicable.}
G01B 21/02
.
for measuring length, width, or thickness (G01B 21/10 takes precedence) [2013-01]
G01B 21/04
. .
by measuring coordinates of points [2013-01]
G01B 21/042
. . .
{Calibration or calibration artifacts (G01B 3/30, G01B 9/02072 take precedence)} [2013-01]
G01B 21/045
. . .
{Correction of measurements (G01B 9/02055 takes precedence)} [2013-01]
G01B 21/047
. . .
{Accessories, e.g. for positioning, for tool-setting, for measuring probes} [2013-01]
G01B 21/06
. .
specially adapted for measuring length or width of objects while moving [2020-08]
G01B 21/065
. . .
{for stretchable materials} [2013-01]
G01B 21/08
. .
for measuring thickness [2013-01]
G01B 21/085
. . .
{using thermal means} [2013-01]
G01B 21/10
.
for measuring diameters [2013-01]
G01B 21/12
. .
of objects while moving [2013-01]
G01B 21/14
. .
internal diameters {(of boreholes or wells E21B 47/08)} [2013-01]
G01B 21/16
.
for measuring distance of clearance between spaced objects [2013-01]
G01B 21/18
.
for measuring depth [2013-01]
G01B 21/20
.
for measuring contours or curvatures, e.g. determining profile [2013-01]
G01B 21/22
.
for measuring angles or tapers; for testing the alignment of axes [2013-01]
G01B 21/24
. .
for testing alignment of axes [2013-01]
G01B 21/26
. .
for testing wheel alignment [2013-01]
G01B 21/28
.
for measuring areas [2023-02]
G01B 21/30
.
for measuring roughness or irregularity of surfaces [2013-01]
G01B 21/32
.
for measuring the deformation in a solid [2013-01]
G01B 2210/00
Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors [2013-01]
G01B 2210/10
.
Wheel alignment [2013-01]
G01B 2210/12
. .
Method or fixture for calibrating the wheel aligner [2013-01]
G01B 2210/14
. .
One or more cameras or other optical devices capable of acquiring a two-dimensional image [2013-01]
G01B 2210/143
. . .
One or more cameras on each side of a vehicle in the main embodiment [2013-01]
G01B 2210/146
. . .
Two or more cameras imaging the same area [2013-01]
G01B 2210/16
. .
Active or passive device attached to the chassis of a vehicle [2013-01]
G01B 2210/18
. .
Specially developed for using with motorbikes or other two-wheeled vehicles [2013-01]
G01B 2210/20
. .
Vehicle in a state of translatory motion [2013-01]
G01B 2210/22
. .
Wheels in a state of motion supported on rollers, rotating platform or other structure substantially capable of only one degree of rotational freedom [2013-01]
G01B 2210/24
. .
Specially developed for using with trucks or other heavy-duty vehicles [2013-01]
G01B 2210/26
. .
Algorithms, instructions, databases, computerized methods and graphical user interfaces employed by a user in conjunction with the wheel aligner [2013-01]
G01B 2210/28
. .
Beam projector and related sensors, camera, inclinometer or other active sensing or projecting device [2013-01]
G01B 2210/283
. . .
Beam projectors and related sensors [2013-01]
G01B 2210/286
. . . .
Projecting a light pattern on the wheel or vehicle body [2013-01]
G01B 2210/30
. .
Reference markings, reflector, scale or other passive device [2013-01]
G01B 2210/303
. . .
fixed to the ground or to the measuring station [2013-01]
G01B 2210/306
. . .
Mirror, prism or other reflector [2013-01]
G01B 2210/40
.
Caliper-like sensors [2013-01]
G01B 2210/42
. .
with one or more detectors on a single side of the object to be measured and with a backing surface of support or reference on the other side [2013-01]
G01B 2210/44
. .
with detectors on both sides of the object to be measured [2013-01]
G01B 2210/46
. .
with one or more detectors on a single side of the object to be measured and with a transmitter on the other side [2013-01]
G01B 2210/48
. .
for measurement of a wafer [2013-01]
G01B 2210/50
.
Using chromatic effects to achieve wavelength-dependent depth resolution [2013-01]
G01B 2210/52
.
Combining or merging partially overlapping images to an overall image [2013-01]
G01B 2210/54
.
Revolving an optical measuring instrument around a body [2013-01]
G01B 2210/56
.
Measuring geometric parameters of semiconductor structures, e.g. profile, critical dimensions or trench depth [2013-01]
G01B 2210/58
.
Wireless transmission of information between a sensor or probe and a control or evaluation unit [2013-01]
G01B 2210/60
.
Unique sensor identification [2013-01]
G01B 2210/62
.
Support for workpiece air film or bearing with positive or negative pressure [2013-01]
G01B 2210/64
.
Interconnection or interfacing through or under capping or via rear of substrate in microsensors [2013-01]
G01B 2210/66
.
Rock or ground anchors having deformation measuring means [2013-01]
G01B 2290/00
Aspects of interferometers not specifically covered by any group under G01B 9/02 [2013-01]
G01B 2290/10
.
Astronomic interferometers [2013-01]
G01B 2290/15
.
Cat eye, i.e. reflection always parallel to incoming beam [2013-01]
G01B 2290/20
.
Dispersive element for generating dispersion [2013-01]
G01B 2290/25
.
Fabry-Perot in interferometer, e.g. etalon, cavity [2013-01]
G01B 2290/30
.
Grating as beam-splitter [2013-01]
G01B 2290/35
.
Mechanical variable delay line [2013-01]
G01B 2290/40
.
Non-mechanical variable delay line [2013-01]
G01B 2290/45
.
Multiple detectors for detecting interferometer signals [2013-01]
G01B 2290/50
.
Pupil plane manipulation, e.g. filtering light of certain reflection angles [2013-01]
G01B 2290/55
.
Quantum effects [2013-01]
G01B 2290/60
.
Reference interferometer, i.e. additional interferometer not interacting with object [2013-01]
G01B 2290/65
.
Spatial scanning object beam [2013-01]
G01B 2290/70
.
Using polarization in the interferometer [2013-01]