Control device, rotation rate sensor and method of operating a control device with harmonic set point signal
US9518824B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 2012 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5747
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control device comprises a sensor unit, which outputs a measurement signal, which reflects a deviation of an oscillator along a direction of excitation. A controller main unit derives a control signal for an actuator unit from the measurement signal and a harmonic set point signal such that the actuator unit counteracts a deviation of the deflection of the oscillator from a set amplitude of a harmonic resonance oscillation. A controller extension unit estimates actual-phase and actual-amplitude of a residual oscillation of the oscillator and synchronizes the harmonic set point signal with the residual oscillation at a deactivated actuator unit. The residual energy contained in the residual oscillation is used, in order to arrive faster at a defined operation state of the oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.