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PCE
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DIFF Subgroup
G01B 5/20

for measuring contours or curvatures

Introduced: September 1968

Full Title

Measuring arrangements characterised by the use of mechanical techniques > for measuring contours or curvatures

CPC subdivides this area 2x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • G01B 5/201 CPC only CPC only
  • G01B 5/202 CPC only CPC only
  • G01B 5/204 CPC only CPC only
  • G01B 5/205 CPC only CPC only
  • G01B 5/207 using a plurality of fixed, simultaneously operating transducers (G01B5/213 - G01B5/22 take precedence) since 1995 IPC+CPC Available in IPC and CPC
  • G01B 5/213 for measuring radius of curvature since 1995 IPC+CPC Available in IPC and CPC
  • G01B 5/22 Spherometers IPC+CPC Available in IPC and CPC