基于标定架的空间坐标三维组合测量坐标转换方法研究

Research on Coordinate Conversion Method of Three-dimensional Combined Measurement of Spatial Coordinates Based on Calibration Frame

大尺寸航天器件内部测量任务需要对大量立方镜位姿进行标定,目前国内外工业级立方镜位姿标定精度技术只能由经纬仪测量系统准直测量完成。为提高经纬仪测量系统与其他空间三坐标测量设备的坐标转换精度,提出了一种基于综合标定架的组合测量坐标转换方法,并设计实验方案,对传统基于公共点测量坐标转换方法与基于综合标定架组合测量坐标转换方法进行实验验证。实验结果表明,提出的基于综合标定架的组合测量坐标转换方法精度提高到0.1522 mm。

The internal measurement tasks of large space devices need to calibrate the pose of a large number of cubic mir-rors.At present,t he calibration accuracy technology of industrial cubic mirrors at home and abroad can only be completed by the collimation measurement system of theodolite.For improving the theodolite measuring system with other space con-version of the coordinates of the three coordinate measuring device,precision calibration frame is proposed based on a com-prehensive combination of measuring coordinate transformation method;and the experimental scheme is designed;t he experi-ment validations of the traditional measuring coordinate transformation method based on the common point and frame com-bination measuring coordinate transformation method based on integrated calibration are carried on.The experimental results show that the precision of the combined measurement coordinate conversion method based on the integrated calibration frame is improved to 0.1522 mm;t he measurement efficiency is high,and the operation is convenient.