IPC Subgroup
G01R 25/04 involving adjustment of a phase shifter to produce a predetermined phase difference, e.g. zero difference
Introduced: September 1968
Last revised: January 2006
Full Title
Arrangements for measuring phase angle between a voltage and a current or between voltages or currents > involving adjustment of a phase shifter to produce a predetermined phase difference, e.g. zero difference
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES