一种提高激光跟踪仪转站准确度的方法  

A method for improving coordinate transformation precision of laser tracker

作　　者：房鹤飞 高瑞翔[1] 徐强胜[1] Fang Hefei;Gao ruixiang;Xu qiangsheng(Shanghai Institute of Quality Inspection and Technical Research)

机构地区：[1]上海市质量监督检验技术研究院

出　　处：《上海计量测试》2017年第2期15-17,共3页Shanghai Measurement and Testing

摘　　要：分析了激光跟踪仪在进行坐标转换时存在的测量误差,经过对跟踪仪转站算法的研究,提出了一种基于整体最小二乘的七参数布尔沙模型的坐标转换方法,并用Leica公司的AT960激光跟踪仪进行实验论证。研究结果表明,采用整体最小二乘法比传统最小二乘法进行坐标转换得到的结果更好,有利于提高激光跟踪仪转站的准确度。The measurement error of laser tracker existing in the coordinate transformation is analyzed in this paper.Through the research of the coordinate transformation algorithm of laser tracker,a coordinate transformation method of seven-parameter Bursa model based on total least square(TLS)method is put forward.The experimental demonstration is carried out with the laser tracker of AT960which is produced by Leica.The result shows that the TLS method is more accurate than the traditional least square(LS)method,which is beneficial to coordinate transformation precision improvement of laser tracker.

关 键 词：激光跟踪仪 坐标转换 最小二乘法(LS) 整体最小二乘法(TLS) 

分 类 号：TH744.5[机械工程—光学工程]