激光跟踪仪的双面互瞄定向

发布时间：2018-01-04 12:39

本文关键词：激光跟踪仪的双面互瞄定向　出处：《光学精密工程》2017年10期 　论文类型：期刊论文

【摘要】：使用传统公共点定向方法很难在狭小、受限空间下完成对大尺寸测量仪器的定向,故本文提出了一种受限空间下球坐标测量系统的双面互瞄定向方法,并以激光跟踪仪为例进行了理论分析和实验验证。该方法结合激光跟踪仪的测量原理和使用特点,通过激光跟踪仪本体测头的运动特性构建几何约束,仅要求测量仪器之间相互可视,便可依靠较小公共视场完成仪器定向。阐述了该方法的数学建模过程,研究了定向优化算法,并在上海光源环形测量控制网建立过程中进行了相关实验验证。结果表明:该方法在仪器相距5m以内时,参考点转站误差优于0.12mm,定向旋转角误差不超过1.5″。与频繁转站的传统方法相比,可在保证精度的同时,极大地提高现场测量效率。该方法亦可推广应用于其它单站坐标测量系统。
[Abstract]:It is very difficult to use the traditional common point orientation method to complete the orientation of the large scale measuring instrument in the narrow and restricted space, so this paper proposes a double-sided mutual aim orientation method for the spherical coordinate measurement system in the restricted space. Taking the laser tracker as an example, theoretical analysis and experimental verification are carried out. Combined with the measuring principle and application characteristics of the laser tracker, the geometric constraints are constructed through the motion characteristics of the laser tracker body probe. The instrument orientation can be accomplished by the small common field of view only when the measuring instruments are visible to each other. The mathematical modeling process of the method is expounded and the orientation optimization algorithm is studied. The experimental results show that the error of reference point is better than 0.12mm when the instrument distance is less than 5 m. The directional rotation angle error is not more than 1.5 ". Compared with the traditional method of frequent rotation, the accuracy can be guaranteed at the same time. The method can also be applied to other single station coordinate measurement systems.
【作者单位】：天津大学精密测试技术及仪器国家重点实验室;中国科学院上海应用物理研究所;
【基金】：国家自然科学基金资助项目(No.51405338,No.51775380) 中国科协“青年人才托举工程”资助项目(No.2016QNRC001)
【分类号】：TH744.5
【正文快照】： 1引言大尺寸测量是几何量精密测量的重要组成部分,随着工业现代化的不断发展,大型机械装备和科学装置的制造和装配急需高效的现场数字化测量手段,基于多仪器/多站位的网络集成测量方法成为重点发展方向[1-3]。作为典型的三维坐标测量系统,激光跟踪仪具有精度高、测量范围大和

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