Error analysis and correction of non-rigid long cantilever coordinate measuring machine

摘要：

In order to improve the measuring accuracy of the coordinate measuring machine with non-rigid structure, the stress condition, the correlative error sources of the CMM and their character were analyzed in detail. According to the feature that the zero positions of the three axes are not the same, the error correction model was built by using the homogeneous coordinate transforming matrix. Due to the Y indicating error having amplitude change and phase mutation in the different X position, the method to correct it by using the Y linear beating error was proposed and the model between two errors is built. The correcting result shows that the accuracy of the long cantilever CMM can be improved from 190um to 60um by using this error synthesis model.

关键词： long cantilever coordinate measuring machine non-rigid correlation homogeneous coordinate transforming matrix error correction

作者: YANG Hongtao FEI Yetai CHEN Baogang

作者单位: Department of Mechanical Engineering, Anhui University of Science & Technology, Huainan, 232001;The The school of instrument science and opto-electronic engineering, Hefei University of Technology, He

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）