IPC Subgroup
G01B 9/021 using holographic techniques
Introduced: July 1974
Last revised: January 2006
Full Title
Measuring instruments characterised by the use of optical techniques > Interferometers > using holographic techniques
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
4 direct subcodes
Child Classifications
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- G01B 9/023 for contour producing
- G01B 9/025 Double-exposure technique
- G01B 9/027 in real time
- G01B 9/029 by time averaging