IPC Subgroup
G01R 17/1 AC or DC measuring bridges
Introduced: September 1968
Last revised: January 2006
Full Title
Measuring arrangements involving comparison with a reference value, e.g. bridge > AC or DC measuring bridges
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
4 direct subcodes
Child Classifications
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- G01R 17/12 using comparison of currents, e.g. bridges with differential current output
- G01R 17/14 with indication of measured value by calibrated null indicator, e.g. percent bridge, tolerance bridge
- G01R 17/16 with discharge tubes or semiconductor devices in one or more arms of the bridge, e.g. voltmeter using a difference amplifier
- G01R 17/18 with more than four branches