To solve the problem of large vibration-induced drift in flexure gyroscope production due to deviation of stiffness center,the formation mechanism and suppression mechanism of vibration-induced drift due to deviation of stiffness center were analyzed.Based on the structure and production process flow of flexure gyroscope,an experimental test was designed to measure the stiffness center at each production process step,and it was determined that the assembly process is the main process causing deviation of stiffness center.Further analysis identified the influencing factors in the assembly process,and a separation experiment was conducted to determine that the individual differences in the preamplifier are the main factor causing deviation of stiffness center.Control measures were formulated,and the production process flow of flexure gyroscope was optimized to ensure consistency in the use of the preamplifier.Engineering practice shows that the control measures can effectively ensure the stability of the stiffness center and effectively suppress vibration-induced drift.The research results have guiding significance for the improvement of flexure gyroscope quality and stability control.
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