Inertial rate sensor and method with improved tuning fork drive
US6510737B1 · kind B1 · utility
23Cited by
5References
47Claims
0Family size
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Key dates
| Filing date | Sep 15, 2000 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Oct 3, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5607
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Inertial rate sensor and method in which a drive signal consisting initially of a square wave and thereafter a sine wave is applied to a vibratory rate sensing element, a pickup circuit is coupled to the rate sensing element for providing an output signal corresponding to movement of the rate sensing element, the magnitude of the drive signals is adjusted to set a scale factor which determines the sensitivity to movement of the rate sensing element, and a signal in the drive circuit is monitored to detect a failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.