Patent ID: 7523663

Claim:
A micromechanical rotation rate sensor, comprising: a seismic mass; at least one driving device adapted to effect a driving vibration of the seismic mass in a first direction; at least one measurement device adapted to measure a deflection of the seismic mass in a second direction and to generate a deflection signal, the deflection including a measurement deflection caused by a Coriolis force and an interference deflection, the interference deflection phase-shifted with respect to the measurement deflection substantially by 90°; at least one compensation device adapted to decrease the interference deflection and which engages with the seismic mass; and at least one regulation device, the deflection signal supplied to the regulation device as an input variable, the regulation device adapted to demodulate, using a periodic signal having a frequency equal to the driving vibration and a phase equal to that of the interference deflection, an interference deflection signal from the deflection signal and to generate a compensation signal from the interference deflection signal, the compensation signal being supplied to the compensation device.