Amplifier arrangement with zeroing device for piezoelectric transducers
US4009447A · kind A · utility
20Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1973 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Jul 20, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring circuit including a piezoelectric transducer contains an output charge amplifier circuit with a semiconductor element connected across the storage element of the charge amplifier. The semiconductor element controls the resetting or zeroing of the storage element to thereby effect control of the operation of the charge amplifier. Typically, the semiconductor element may be a field effect transistor, photo-device, etc., and the control of the same may be remotely controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.