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用三坐标测量机进行高速扫描测量时，由于机体的振动会产生较大的动态误差。本文研究了扫描三坐标机在高速运动中的动态特性．找出了产生动态误差的根源．文中根据过程辨识原理，将三坐标测量机看作线性动力系统，用实验方法建立了动态误差的ＡＲＭＡ模型，并将Ｋａｌｍａｎ滤波器应用于模型之中，消除了测量噪声对参数辨识的影响，提高了系统辨识的精度．最后对一台移动桥式三坐标测量机成功地进行了动态误差补偿，减小动态误差６０％以上
With CMM for high-speed scanning measurements, due to the body vibration will have a greater dynamic error. This paper studies the dynamic characteristics of scanning CMM in high-speed motion. Find out the root causes of the dynamic error. According to the principle of process identification, the CMM is regarded as a linear dynamic system. The ARMA model of dynamic error is established by experimental method. The Kalman filter is applied to the model to eliminate the influence of measurement noise on parameter identification and improve The accuracy of system identification. Finally, a mobile bridge CMM has been successfully carried out dynamic error compensation, reducing the dynamic error of more than 60%