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PCE
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DIFF Subgroup
G01R 19/25

using digital measurement techniques

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Arrangements for measuring currents or voltages or for indicating presence or sign thereof > using digital measurement techniques

CPC:

Arrangements for measuring currents or voltages or for indicating presence or sign thereof (G01R5/00 takes precedence; for measuring bioelectric currents or voltages A61B5/24) > using digital measurement techniques

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

4 codes are CPC-only extensions.

IPC defines codes here since 1985.

Child Classifications

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  • G01R 19/2503 CPC only CPC only
  • G01R 19/2513 CPC only CPC only
  • G01R 19/2516 CPC only CPC only
  • G01R 19/252 using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency since 1985 IPC+CPC Available in IPC and CPC
  • G01R 19/255 using analogue/digital converters of the type with counting of pulses during a period of time proportional to voltage or current, delivered by a pulse generator with fixed frequency since 1985 IPC+CPC Available in IPC and CPC
  • G01R 19/257 using analogue/digital converters of the type with comparison of different reference values with the value of voltage or current, e.g. using step-by-step method since 1985 IPC+CPC Available in IPC and CPC