计量学报2017，Vol.38Issue(5)：553-558,6.DOI:10.3969/j.issn.1000-1158.2017.05.07
基于摄影测量的基准尺长度测量系统的调节与误差分析
Adjustment and Error Analysis of the Length Measurement System for the Scale-bar Based on Photogrammetry
摘要
Abstract
The precision of a scale-bar directly influences the accuracy of measurement results as it is used as the length standard of photogrammetry.In order to ensure the measuring accuracy of a scale-bar length,a measurement system composed of a aerostatic guideway,a laser intefferometer and a CCD imaging system are designed,and the influence factors of the accuracy of the measurement system are analyzed,meanwhile,the adjustment errors of the imaging position of retroreflective target (RRT),the CCD camera optical axis,the laser interferometer,the scale-bar and the rotation around its own optical axis of CCD imaging system in the measurement system are calculated and analyzed to guide the adjustment processes of CCD imaging system,the laser interferometer and the scale-bar.Finally,the measurement system is used to measure the length of a kind of scale-bar at different times.The experimental result shows that the standard deviation of the scale-bar's length can reach 1 μm which can meet the requirements of industrial photogrammetry.关键词
计量学/基准尺/摄影测量/误差分析Key words
metrology/scale-bar/photogrammetry/error analysis分类
通用工业技术引用本文复制引用
谭泽祥,董明利,燕必希,孙鹏,王君..基于摄影测量的基准尺长度测量系统的调节与误差分析[J].计量学报,2017,38(5):553-558,6.基金项目
国家自然科学基金(51475046) （51475046）
