Patent ID: 7100445

Claim:
A rotation rate sensor, comprising: a vibrational gyroscope having a natural frequency and connected in at least one control loop, said at least one control loop supplying an excitation signal at the natural frequency of said vibrational gyroscope, said vibrational gyroscope generating an output signal, said at least one control loop deriving a noisy rotation rate signal from said output signal; a low pass filter having a control input, a controllable bandwidth being controllable in response to a signal at said control input, and an input connected for receiving the noisy rotation rate signal; a bandpass filter having an input connected for receiving the noisy rotation rate signal and an output; and a threshold value circuit having an input connected to said bandpass filter output and an output connected to said low pass filter control input such that the bandpass filter output is connected to said low pass filter control input through said threshold value circuit.