本文介绍了用通用电容式位移测量仪,采用单向法测量机床刀具主轴回转径向运动误差的测量原理、测试装置及数据处理方法。该法以动态调整法消除安装偏心及作静态、动态标定,所获得的特征量较符合实际,可用来评定刀具主轴径向运动误差所引起的被加工面误差值。方法简便,适于现场测量。 This paper introduces the measuring principle, testing device and data processing method of measuring the radial movement error of the tool spindle of the machine tool by the universal capacitive displacement measuring instrument. The method of dynamic adjustment method to eliminate eccentric installation and static, dynamic calibration, the characteristics obtained by the more realistic, can be used to assess the tool radial error caused by the workpiece surface error. The method is simple and suitable for field measurement.