On angular acceleration sensor system vibration base

摘要

angular velocity sensor system with a vibrating the angular velocity sensor, comprising:a vibrator (10) comprising a vibrating element (30) is arranged in such a way that it runs along a first direction, wherein the element (30) is arranged such that it further in a second direction perpendicular to the first direction, when there is an angular velocity along a third direction perpendicular to the first and second directions is exposed to,a drive circuit (6), in order to cause the vibrator for this purpose, the vibrating element with a predetermined frequency along the first direction thereon to oscillate,an oscillation detector (7) in order to vibrations of the vibrating element in the second direction, to be detected and a voltage which represents the detected oscillations, thus to generate a voltage is generated, which the oscillations of the vibrating element along the second direction,a first synchronous detector (22), in order to synchronously a primary frequency component of the generated voltage with the use of clock pulses of the previously determined frequency to detect and to generate an output signal, which contains the detected primary frequency component;a second synchronous detector (23), in order to synchronously an odd-numbered harmonic of the generated voltage with the use of clock pulses of the frequency of the odd-numbered harmonic be detected; anda harmonic extinguisher (25), to a remaining odd-numbered harmonic component, which in the output signal of the first synchronous detector with the odd-numbered harmonics of the second synchronous detector is detected, to erase.