罗明^[2] 段发阶 王学军^[3] 王春和 叶声华

（天津大学精密测试技术和仪器国家重点实验室 天津 300072）

摘要：文中以透视投影变换为依据，为基于两台经纬仪形成的一种非接触式光学柔性三坐标测量系统提出了一全新的数学模型。该模型的提出不仅大大减少了系统定标的人为调整过程，即无需互瞄和精确调水平，使得定标操作简单、精度高，而且使系统的建立更为随意、灵活，增强了非接触式光学柔性三坐标测量系统的应用价值。实验证明了所提出数学模型的正确性，并获得0.05mm的空间精度。

关键词：坐标测量仪 非接触测量 经纬仪 互瞄 透视投影交换

A Non-Contacting Optical Flexible

3D Measurement System(www.daowen.com)

Luo Ming Duan Fajie Wang Xuejun Wang Chunhe Ye Shenghua

（State Key Lab of Precision Measuring Technology&Instruments，Tianjin University Tianjin 300072）

Abstract：In terms of perspective projection transformation，a novel mathematical model is pro-posed for a non-contacting optical flexible 3D measurement system constructed by the two theodo-lites.The present approach greatly reduces human adjusting process of the system calibration，i.e.does not need mutualalignment and exact horizontal adjustment，such that the system calibration procedure is more simple and accurate.Moreover，the set-up of the system is more random and flexible，and the application value of the non-contacting optical flexible 3D measurement system is enhanced.The experimental results prove that the present approach is right and the obtained spatial accuracy is 0.05mm.

Key Words：cooredinatometers contactless measusrement theodolites mutual alignment per-spective projection transformation