Patent ID: 6553833
Filing Date: 2003-04-29
Classification: G01C

Abstract:
A device for generating bias voltage for a rotationally or linearly vibrating rotation rate sensor, which on an output side furnishes at least one measurement signal from which a rotation rate signal is ascertained by means of an evaluation circuit connected to the rotation rate sensor, and which has an electrode arrangement with at least two electrodes, which are connected to a bias voltage generating arrangement, characterized in that the device has an adaptive quadrature compensator (8), which is connected on an input side to the evaluation circuit (2, 3, 7) and on the output side to the bias voltage generating arrangement (9), wherein an adaptive phase compensator (3) in the evaluation circuit has outputs for a phase-shifted measurement signal (Ue) and demodulation carrier signals (UTq, UTr), and wherein the demodulation carrier signals are delivered to the adaptive quadrature compensator (8).