Patent ID: 8794047

Claim:
A method for a precise measuring operation of a micromechanical rotation rate sensor, comprising at least one deflectively suspended seismic mass, at least one drive device for driving the seismic mass and at least one first and one second trimming electrode element, which are jointly assigned directly or indirectly to the seismic mass, the method comprising: setting a first electrical trimming voltage (U TO1 , U TLO1 , U TRO1 , U TU2 , U T1H , U T2V ) between the first trimming electrode element and the seismic mass; and setting a second electrical trimming voltage (U TO2 , U TLO2 , U TRO2 , U TU1 , U T2H , U T1V ) between the second trimming electrode element and the seismic mass, wherein the first and the second electrical trimming voltages are set at least as a function based on a square root of a summation of a squared quadrature parameter (U T ) determined from a measured quadrature signal of the rotation rate sensor and a squared resonance parameter (U f ), and wherein the quadrature parameter is: a) increased when the measured quadrature signal is above a quadrature threshold, b) decreased when the measured quadrature signal is below the quadrature threshold, and c) maintained the same when the measured quadrature signal is equal to the quadrature threshold.