可变长度光电基准尺设计技术（英文）  

Design of the Variable Length Photoelectric Reference Scale

作　　者：吴斌[1] 刘鑫 邢秀奎 杨峰亭 Wu Bin;Liu Xin;Xing Xiukui;Yang Fengting(School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300 07 2 , Chin)

机构地区：[1]天津大学精密仪器与光电子工程学院,天津300072

出　　处：《纳米技术与精密工程》2018年第1期101-105,共5页Nanotechnology and Precision Engineering

基　　金：国家自然科学基金资助项目(51475328,61771336)

摘　　要：根据激光经纬仪的特点,提出了一种以高精度光电位置敏感器(PSD)为核心器件,用于激光经纬仪测量系统快速、准确定向的可变长度光电基准尺.介绍了基于此基准尺的激光经纬仪测量系统定向方案以及基准尺整体设计方案,给出了该基准尺的结构、标定以及解算方法.最后,通过两台莱卡激光经纬仪组成的双站测量系统评价该可变长度基准尺的精度.经实验验证,利用该可变长度光电基准尺定向后,双站经纬仪的相对测量精度为0.04%.Based on the characteristics of laser theodolite, a new kind of variable length photoelectric ref-erence scale is proposed. I t can orientate the laser theodolite measurement system quickly and accurately with the help of high-precision photoelectric position-sensitive detector （ PSD）. The orientation scheme based on this reference scale and the overall design project are presented. The structure of photoelectric reference scale, methods of calibration and calculation are given. Finally, a measurement system consis-ting of two Leica laser theodolites is established to validate the accuracy of this scale. The result indicates that orientated by the variable length photoelectric reference scale, the relative measurement error of laser theodolite system is 0. 04% .

关 键 词：PSD 基准尺 激光经纬仪 标定 

分 类 号：TH741[机械工程—光学工程]