Ring resonator gyroscope controlling two servo control loops based on the output of a single Interference detector
US5090810A · kind A · utility
14Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Apr 18, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/727
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A ring resonator fibre optic gyro includes a single detector on which the clockwise and counter-clockwise beams interfere on leaving the ring. The output of the detector is used by a first and a second servo loop to compensate for optical path length changes and for rotation of the gyro respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.