CPC Main Group
G01B 11/00 Measuring arrangements characterised by the use of optical techniques
10 direct subcodes
Child Classifications
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- G01B 11/02 for measuring length, width or thickness (G01B11/08 takes precedence)
- G01B 11/08 for measuring diameters
- G01B 11/14 for measuring distance or clearance between spaced objects or spaced apertures (G01B11/26 takes precedence; rangefinders G01C3/00)
- G01B 11/16 for measuring the deformation in a solid, e.g. optical strain gauge
- G01B 11/22 for measuring depth
- G01B 11/24 for measuring contours or curvatures
- G01B 11/26 for measuring angles or tapers; for testing the alignment of axes
- G01B 11/28 for measuring areas
- G01B 11/30 for measuring roughness or irregularity of surfaces