A new approach of a self-test and self-calibration concept for micro-machined gyroscopes is described and evaluated. An induced angular rate is applied by a reference system resulting to a Coriolis force. The resulting real 'inertial' response of the Coriolis Vibrating Gyroscope (CVG) can be used for implementation of self-test and recalibration routines. The shown concept is realized without any changes in silicon technology. Only a adequate larger die size is required compared to a standard gyroscope to implement the additional reference system. The invented reference system enables the compensation of errors and drifts during operation and life time arising in both, CVG mechanics as well as in electronics. Beyond that, an in-mission calibration can be applied under defined conditions for higher system accuracy and reliability. This paper describes in detail the concept, its modelling and the realization of this new approach. Finally, first measurement results demonstrate the feasibility of the new calibration concept.
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