Fiber optic gyroscope vibration error compensator
US5923424A · kind A · utility
17Cited by
0References
36Claims
0Family size
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Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/721
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rectification error reducer for a fiber optic gyroscope, which is an intensity servo or compensator for reducing vibration effects in the optical signals caused by modulation at vibration frequencies induced by the gyroscope operating environment. The vibration effects may be detected in signals from the photodiode output in amplitude form which is used in a control system to null out optical intensity variations at the frequencies of vibration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.