Vibration-type gyro apparatus
US4694696A · kind A · utility
20Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1985 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Oct 23, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P1/006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibration-type gyro apparatus is disclosed, which includes a vibration mass portion, a piezo-electric element for detecting the displacement of the apparatus and a preamplifier having an input resistance R and supplied with the output from the piezo-electric element, wherein the input resistance R is selected to have a value substantially expressed as R.apprxeq.1/C.omega. (where C is an electrostatic capacity of the piezo-electric element and .omega. is a vibration angular velocity of the mass portion) so that the gyro apparatus will be substantially free of variations due to temperature changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.