静电陀螺电干扰力矩模型中有关问题的探讨

Discussion on Some Problems Relative to ESG Electric Field Disturbing Torque Model

本文就静电陀螺支承电极的实际情况与理想条件下对电干扰力矩的影响和在全姿态读取时转子非球形参数耦合项与离心变形中高次谐波等引起的电干扰力矩进行讨论,给出了模型有关误差的仿真结果,指出在建立完整的电力矩模型和捷联应用时为确保陀螺的高精度必须考虑上述有关因素。

Compared with the ideal electrode area of ESG,in this paper,the electric field disturbing torques,caused by both the couplings of rotor's non-spheri- cal parameters and the high frequency harmonics in the rotor's centrifugal deformation under the real electrode area condition are discussed,and the simulation results of some errors relative to the model are given.It is necessary to consider above factors to establish the complete electric field disturbing torque model and ensure the gyro's high precision when ESG is used in strapdown system.