Analysis and control of influencing factors of cross coupling of flexible gyro
Due to mechanical structure error and electrical interference,the produced flexible gyro has cross coupling.The influencing factors of cross coupling were analyzed,which were positioned as the perpendicularity of the iron core column of the differential inductance sensor and the circumferential deviation angle of the torquer coil.The error models of the sensor and torquer were established,and the influencing degree of each influencing factor on cross coupling was quantitatively analyzed.Precision assembly tools of the iron core column and coil were designed,and an adjustable design of torquer was carried out to control the cross coupling of the flexible gyro.The engineering practice shows that all the control methods achieve good results,and the cross coupling stability control is less than 1%,which has a positive significance for improving the measurement accuracy of the diagonal velocity of the flexible gyro and the navigation accuracy of the inertial navigation system.
万方数据
维普
