Kerr effect compensator for a fiber optic gyroscope
US6046810A · kind A · utility
18Cited by
4References
49Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/72
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric fiber optic gyroscope having compensation electronics to virtually eliminate rotation rate sensing errors caused by Kerr effect in the IFOG due to differing intensities of the counter-propagating beams relative to each other. Compensation accounts for varying intensities of the beams due to all or some changes of: the light beam splitter ratio relative to temperature; fiber coil loss due to temperature and longevity; and the intensity of the light source because of age.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.