由于低成本 MEMS 器件本身具有误差，且初始误差比较大，所以在使用前必须进行标定。在十二位置标定方法的基础上，进行三耦合方位动态实验，标定 MIMU 陀螺仪的零偏、刻度因数、安装误差系数和与角速度耦合二次有关项系数。将该方法应用于实验室自制 MIMU 的标定中，标定结果与 MTI 计进行对比，验证了该标定方法的可行性。%The low cost MEMS devices must be calibrated before use as they have errors inherently and the initial errors are relatively large.On the basis of the method of twelve position calibration,dynamic ex-periments of three coupling orientations are conducted to calibrate the MIMU gyroscope bias,scale factor, installation error coefficient,and quadratic term coefficient of angular velocity coupling.The method is ap-plied in the calibration of self made laboratory MIMU.The calibration results are compared with the MTI meter to verify the feasibility of the calibration method.
展开▼
