characterised by the beam path configuration

Introduced: January 2022

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Measuring instruments characterised by the use of optical techniques > Interferometers > characterised by the beam path configuration

CPC subdivides this area 9x more granularly than IPC with 8 additional codes.

8 codes are CPC-only extensions.

IPC defines codes here since 2022.

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G01B 9/02016 CPC only CPC only
G01B 9/02017 with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations since 2022 +2 CPC IPC+CPC Available in IPC and CPC
G01B 9/02022 CPC only CPC only
G01B 9/02023 CPC only CPC only
G01B 9/02024 CPC only CPC only
G01B 9/02025 CPC only CPC only
G01B 9/02027 +1 CPC CPC only CPC only
G01B 9/02029 +2 CPC CPC only CPC only
G01B 9/02032 CPC only CPC only