Force balanced vibratory rate sensor
US4267731A · kind A · utility
13Cited by
1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1980 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Feb 11, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/133
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibratory inertial rate of turn sensor employs force feed back for maintaining the free end of a vibrating cantilever in a nulled lineal path when subjected to a turn about the beam axis, the electrical signal required for nulling being a measure of rate of turn of the craft. The output signal demodulation self-tracks the beam resonance frequency and the beam drive and null terms balance one another, tending to maintain the sensor scale factor constant over time and temperature. A unique pick-off and beam primary drive and restoring force drive configuration is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.