光电自准直仪测量系统的设计与实现  

Implementation and design of photoelectric autocollimator's measurement system

作　　者：刘杰[1] 燕必希[1] 

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192

出　　处：《北京信息科技大学学报（自然科学版）》2015年第2期71-75,共5页Journal of Beijing Information Science and Technology University

基　　金：北京市属高等学校人才强教深化计划项目支持(PHR201008448)

摘　　要：为了检测数控转台位置精度,设计了光电自准直仪测量系统。系统采用面向对象的设计方法,实现相机和图像处理两个类的定义和封装。运用最小二乘拟合法,完成测量系统重复性实验和精度比对实验。重复性实验中测量值的标准差均小于0.4″,精度对比实验中,测量范围内单次测量误差小于2″,满足系统设计精度要求。实验结果表明,系统可完成自动测量,并用于数控转台位置精度自动检测。Photoelectric autocollimator measurement system is designed to detect the positional precision of a NC motorized stage. Two object oriented classes are designed for the software called the camera class and the image processing class. The experiments on repeatability and accuracy of the system are carried out by using the method of least-square-fitting. Experimental results show an average error less than 2＂ and a RMS less than 0. 4＂ which satisfies the accuracy requirement of system design. The system can implement measurement automatically and can be used for highly accurate angle measurement for a numerical control rotary table.

关 键 词：二维小角度测量 自准直仪 标定 图像处理 

分 类 号：TH741[机械工程—光学工程]