IPC Classification

Class code (prefix) Descriptions Number of results
  • All sections
  • G - Physics
  • G01B - Measuring length, thickness or similar linear dimensions; measuring angles; measuring areas; measuring irregularities of surfaces or contours
G01B 1/00 Measuring instruments characterised by the selection of material therefor
G01B 3/00 Measuring instruments characterised by the use of mechanical techniques
G01B 3/02 Rulers with scales or marks for direct reading
G01B 3/04 Rulers with scales or marks for direct reading rigid
G01B 3/06 Rulers with scales or marks for direct reading rigid folding
G01B 3/08 Rulers with scales or marks for direct reading rigid extensible
G01B 3/10 Measuring tapes
G01B 3/11 Chains for measuring length
G01B 3/12 Measuring wheels
G01B 3/14 Templates for checking contours
G01B 3/16 Compasses, i.e. with a pair of pivoted arms
G01B 3/18 Micrometers
G01B 3/20 Slide gauges
G01B 3/22 Feeler-pin gauges, e.g. dial gauges
G01B 3/24 Feeler-pin gauges, e.g. dial gauges with open yoke, i.e. calipers
G01B 3/26 Plug gauges
G01B 3/28 Depth gauges
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
G01B 3/32 Holders therefor
G01B 3/34 Ring or other apertured gauges, e.g. "go/no-go" gauge
G01B 3/36 Ring or other apertured gauges, e.g. "go/no-go" gauge for external screw threads
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
G01B 3/40 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 for external screw threads
G01B 3/42 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 of limit-gauge type, i.e. "go/no-go"
G01B 3/44 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 of limit-gauge type, i.e. "go/no-go" preadjustable for wear or tolerance
G01B 3/46 Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable
G01B 3/48 Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable for internal screw threads
G01B 3/50 Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable of limit-gauge type, i.e. "go/no-go"
G01B 3/52 Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable of limit-gauge type, i.e. "go/no-go" preadjustable for wear or tolerance
G01B 3/56 Gauges for measuring angles or tapers, e.g. conical calipers
G01B 3/102 Means for damping
G01B 3/1003 Measuring tapes characterised by layout or indicia
G01B 3/1005 Means for controlling winding or unwinding of tapes
G01B 3/1007 Means for locking
G01B 3/1041 Measuring tapes characterised by casings
G01B 3/1043 Measuring tapes characterised by casings - Details of internal structure thereof, e.g. means for coupling separately moulded casing halves
G01B 3/1046 Measuring tapes characterised by casings - Details of external structure thereof, e.g. shapes for ensuring firmer hold
G01B 3/1048 Integrated means for affixing or holding
G01B 3/1056 Tape end arrangements, e.g. end-hooks
G01B 3/1061 Means for displaying or assisting reading of length measurement
G01B 3/1069 Electronic or mechanical display arrangements
G01B 3/1071 Separate means for supporting or affixing measuring tapes
G01B 3/1084 Tapes combined with arrangements for functions other than the measuring of lengths
G01B 3/1089 Tapes combined with arrangements for functions other than the measuring of lengths for marking, drawing or cutting
G01B 3/1092 Tapes combined with arrangements for functions other than the measuring of lengths for performing length measurements and at least one other measurement of a different nature, e.g. bubble-type level
G01B 3/1094 Tapes combined with arrangements for functions other than the measuring of lengths for recording information or for performing calculations
G01B 5/00 Measuring arrangements characterised by the use of mechanical techniques
G01B 5/02 Measuring arrangements characterised by the use of mechanical techniques for measuring length, width, or thickness
G01B 5/04 Measuring arrangements characterised by the use of mechanical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 5/06 Measuring arrangements characterised by the use of mechanical techniques for measuring length, width, or thickness for measuring thickness
G01B 5/08 Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
G01B 5/10 Measuring arrangements characterised by the use of mechanical techniques for measuring diameters of objects while moving
G01B 5/12 Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
G01B 5/14 Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01B 5/16 Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures
G01B 5/18 Measuring arrangements characterised by the use of mechanical techniques for measuring depth
G01B 5/20 Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
G01B 5/22 Spherometers
G01B 5/24 Measuring arrangements characterised by the use of mechanical techniques for testing the alignment of axes
G01B 5/25 Measuring arrangements characterised by the use of mechanical techniques for testing the alignment of axes for testing the alignment of axes
G01B 5/26 Measuring arrangements characterised by the use of mechanical techniques for measuring areas, e.g. planimeters
G01B 5/28 Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
G01B 5/30 Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
G01B 5/207 Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
G01B 5/213 Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring radius of curvature
G01B 5/245 Measuring arrangements characterised by the use of mechanical techniques for testing the alignment of axes for testing perpendicularity
G01B 5/252 Measuring arrangements characterised by the use of mechanical techniques for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
G01B 5/255 Measuring arrangements characterised by the use of mechanical techniques for testing the alignment of axes for testing wheel alignment
G01B 7/00 Measuring arrangements characterised by the use of electric or magnetic techniques
G01B 7/02 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness
G01B 7/004 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
G01B 7/06 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness
G01B 7/008 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points using coordinate measuring machines
G01B 7/012 Contact-making feeler heads therefor
G01B 7/13 Internal diameters
G01B 7/14 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
G01B 7/15 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures being regularly spaced
G01B 7/016 Constructional details of contacts
G01B 7/24 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
G01B 7/26 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
G01B 7/28 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
G01B 7/30 Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes
G01B 7/31 Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing the alignment of axes
G01B 7/32 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring areas
G01B 7/34 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
G01B 7/287 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
G01B 7/293 Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures for measuring radius of curvature
G01B 7/305 Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing perpendicularity
G01B 7/312 Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
G01B 7/315 Measuring arrangements characterised by the use of electric or magnetic techniques for testing the alignment of axes for testing wheel alignment
G01B 9/00 Measuring instruments characterised by the use of optical techniques
G01B 9/02 Interferometers
G01B 9/04 Measuring microscopes
G01B 9/06 Measuring telescopes
G01B 9/08 Optical projection comparators
G01B 9/10 Goniometers for measuring angles between surfaces
G01B 9/021 Interferometers using holographic techniques
G01B 9/023 Interferometers using holographic techniques for contour producing
G01B 9/025 Double-exposure technique
G01B 9/027 Interferometers using holographic techniques in real time
G01B 9/029 Interferometers using holographic techniques by time averaging
G01B 9/0209 Low-coherence interferometers
G01B 9/02001 Interferometers characterised by controlling or generating intrinsic radiation properties
G01B 9/02002 Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies
G01B 9/02003 Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies using beat frequencies
G01B 9/02004 Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies using frequency scans
G01B 9/02015 Interferometers characterised by the beam path configuration
G01B 9/02017 Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations
G01B 9/02018 Multipass interferometers, e.g. double-pass
G01B 9/02055 Reduction or prevention of errors; Testing; Calibration
G01B 9/02056 Passive reduction of errors
G01B 9/02061 Reduction or prevention of effects of tilts or misalignment
G01B 9/02091 Tomographic interferometers, e.g. based on optical coherence
G01B 9/02097 Self-interferometers
G01B 9/02098 Shearing interferometers
G01B 11/00 Measuring arrangements characterised by the use of optical techniques
G01B 11/02 Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
G01B 11/03 Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness by measuring coordinates of points
G01B 11/04 Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 11/06 Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
G01B 11/08 Measuring arrangements characterised by the use of optical techniques for measuring diameters
G01B 11/10 Measuring arrangements characterised by the use of optical techniques for measuring diameters of objects while moving
G01B 11/12 Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
G01B 11/14 Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
G01B 11/16 Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
G01B 11/22 Measuring arrangements characterised by the use of optical techniques for measuring depth
G01B 11/24 Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
G01B 11/25 Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
G01B 11/26 Measuring arrangements characterised by the use of optical techniques for testing the alignment of axes
G01B 11/27 Measuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing the alignment of axes
G01B 11/28 Measuring arrangements characterised by the use of optical techniques for measuring areas
G01B 11/30 Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01B 11/245 Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
G01B 11/255 Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures for measuring radius of curvature
G01B 11/275 Measuring arrangements characterised by the use of optical techniques for testing the alignment of axes for testing wheel alignment
G01B 13/00 Measuring arrangements characterised by the use of fluids
G01B 13/02 Measuring arrangements characterised by the use of fluids for measuring length, width, or thickness
G01B 13/03 Measuring arrangements characterised by the use of fluids for measuring length, width, or thickness by measuring coordinates of points
G01B 13/04 Measuring arrangements characterised by the use of fluids for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 13/06 Measuring arrangements characterised by the use of fluids for measuring length, width, or thickness for measuring thickness
G01B 13/08 Measuring arrangements characterised by the use of fluids for measuring diameters
G01B 13/10 Measuring arrangements characterised by the use of fluids for measuring diameters internal diameters
G01B 13/12 Measuring arrangements characterised by the use of fluids for measuring distance or clearance between spaced objects or spaced apertures
G01B 13/14 Measuring arrangements characterised by the use of fluids for measuring depth
G01B 13/16 Measuring arrangements characterised by the use of fluids for measuring contours or curvatures
G01B 13/18 Measuring arrangements characterised by the use of fluids for testing the alignment of axes
G01B 13/19 Measuring arrangements characterised by the use of fluids for testing the alignment of axes for testing the alignment of axes
G01B 13/20 Measuring arrangements characterised by the use of fluids for measuring areas, e.g. pneumatic planimeters
G01B 13/22 Measuring arrangements characterised by the use of fluids for measuring roughness or irregularity of surfaces
G01B 13/24 Measuring arrangements characterised by the use of fluids for measuring the deformation in a solid
G01B 13/195 Measuring arrangements characterised by the use of fluids for testing the alignment of axes for testing wheel alignment
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
G01B 15/02 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 for measuring thickness
G01B 15/04 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 for measuring contours or curvatures
G01B 15/06 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 for measuring the deformation in a solid
G01B 15/08 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 for measuring roughness or irregularity of surfaces
G01B 17/00 Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations
G01B 17/02 Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring thickness
G01B 17/04 Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
G01B 17/06 Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring contours or curvatures
G01B 17/08 Measuring arrangements characterised by the use of infrasonic, sonic, or ultrasonic vibrations for measuring roughness or irregularity of surfaces
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
G01B 21/02 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
G01B 21/04 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
G01B 21/06 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
G01B 21/08 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
G01B 21/10 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
G01B 21/12 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters of objects while moving
G01B 21/14 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters internal diameters
G01B 21/16 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance or clearance between spaced objects
G01B 21/18 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
G01B 21/20 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
G01B 21/22 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes
G01B 21/24 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes for testing the alignment of axes
G01B 21/26 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for testing the alignment of axes for testing wheel alignment
G01B 21/28 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
G01B 21/30 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
G01B 21/32 Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid