Device and method for measuring an angular speed
US5736640A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1996 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Jun 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5614
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The angular speed measuring device comprises: PA1 a transducer (1) intended to rotate at said angular speed; PA1 means (9) for generating a mechanical vibration of said transducer (1) in response to an excitation signal (OSC), this mechanical vibration comprising a parasite component and at least one useful component having an amplitude which is representative of said angular speed, and PA1 means for producing an electric detection signal (DET) representative of said mechanical vibration and also comprising a parasite component and at least one useful component having an amplitude which is representative of said angular speed. The device is characterized in that it further comprises processing means (23) for obtaining from said electric detection signal (DET), an analog measurement signal (S") the amplitude of which only depends on said useful component of the electric detection signal (DET), the parasite component of the electric detection signal being eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.