Process for reducing bias error in a vibrating structure sensor
US6698271B1 · kind B1 · utility
8Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/567
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Bias error is reduced in a vibrating structure sensor having primary and secondary pick-offs separated by a fixed angular amount (45°) with respect to the vibrating structure by summing a proportion of the primary pick-off output signal into the secondary pick-off output signal or subtracting a proportion of the primary pick-off output signal from the secondary pick-off output signal effectively to reduce or increase the angular separation of the secondary pick-off from the primary driver by an amount sufficient to set the rate output signal from the vibrating structure to zero and thereby minimize bias error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.