Dither signal remover for a dithered ring laser angular rate sensor
US4898469A · kind A · utility
2Cited by
3References
1Claims
0Family size
Inventors
Key dates
| Filing date | Oct 4, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Oct 4, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/664
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Readout signals of a dithered ring laser angular sensor are processed by a signal combining circuit which forms part of a closed-loop dither signal remover scheme. The output of the signal combining circuit is demodulated as a function of the dither applied to the ring laser sensor and subsequently utilized to control a correction signal. The signal combining circuit combines the readout signal and the correction signal to yield an output signal stripped of substantially any dither signal components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.