IPC Main Group
G01R 13/00 Arrangements for displaying electric variables or waveforms
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
Related Keywords
DISPLAYING of electric variables
7 direct subcodes
Child Classifications
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- G01R 13/02 for displaying measured electric variables in digital form
- G01R 13/04 for producing permanent records
- G01R 13/2 Cathode-ray oscilloscopes
- G01R 13/36 using length of glow discharge, e.g. glowlight oscilloscopes
- G01R 13/38 using the steady or oscillatory displacement of a light beam by an electromechanical measuring system
- G01R 13/4 using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect
- G01R 13/42 Instruments using length of spark discharge, e.g. by measuring maximum separation of electrodes to produce spark