IPC Subgroup
G01H 11/08 using piezoelectric devices
Introduced: January 1985
Last revised: January 2006
Full Title
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties > by electric means > using piezoelectric devices
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES