IPC Subgroup
G01R 9/08 piezoelectrically driven
Introduced: September 1968
Last revised: January 2006
Full Title
Instruments employing mechanical resonance > using vibrating reeds, e.g. for measuring frequency > piezoelectrically driven
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES