Inertial measurement system and method with sensor bias cancellation
US7509857B2 · kind B2 · utility
3Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jun 12, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C25/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Inertial measurement system and method in which a gyroscope is periodically dithered about an axis perpendicular to its input axis, a signal from the gyroscope is delayed to provide a delayed signal which lags the gyroscope signal by one-half of the dithering period, and the delayed signal and the signal from the gyroscope are combined to provide an output signal from which the bias has been cancelled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.