Method and circuit arrangement for secure start-up of a rate-of-turn sensor
US7694562B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Dec 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/56
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
For operational control of a start-up of a rate-of-turn sensor including at least one oscillator element that is excitable to perform a mechanical oscillating motion, a signal proportional to the instantaneous speed or deflection of the oscillator element is amplified and used as the operating signal to operate the oscillator element, during the start-up process for the rate-of-turn sensor, the amplitude of the operating signal is set to a constant specifiable value, the stimulation frequency of the operating signal is increased essentially continuously from a starting value below the main driving frequency of the oscillating motion to a final value above the main driving frequency and below a spurious driving frequency while, simultaneously, the deflection and/or the speed of the oscillator element are monitored in order to determine the main driving frequency of the oscillating motion, once the final value is reached and the main driving frequency is determined, the stimulation frequency of the operating signal is set to the main driving frequency, and the operational regulation of the amplitude and the stimulation frequency of the operating signal are released.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.