光学精密工程2012，Vol.20Issue(11)：2472-2478,7.DOI:10.3788/OPE.20122011.2472
用于大尺寸工件的动态长度测量系统
Dynamic length measuring system for large scale workpieces
摘要
Abstract
According to an actual engineering project and dynamic topographic features of moving workpieces, a new measuring model for large scale workpieces was established based on the virtual measurement datum structured by the two-dimensional laser triangle measuring method and the multi-sensor fusion rule. Then, a noncontact, high precision and low cost dynamic length measuring system based on the human-computer interaction was developed by using the error separation method to correct theoretical errors and motion errors. In the experiment, the two probe units were placed on the two sides of moving workpiece, the displacement between both end planes of workpiece and virtual measurement datum was measured simultaneously. Finally, A experimental measurement on the cylinder workpieces (1 000 + 25) mm at different speeds was performed, and results show that the system can offer the resolution less than 10 pm, measuring precision over 100 j^m, and a maximum speed of 5 cm/s. According to the actual operation results, the proposed measurement techniques and measuring system can be well applied to the length detection for similar regular large scale workpieces in industrial production.关键词
移动大尺寸工件/二维激光三角法/多传感器融合/虚拟测量基准面/长度测量系统Key words
moving large scale workpiece/ 2-D laser triangulation method/ multi-sensor fusion/ virtualmeasurement datum/ length measurement system分类
通用工业技术引用本文复制引用
周森,郭永彩,高潮..用于大尺寸工件的动态长度测量系统[J].光学精密工程,2012,20(11):2472-2478,7.基金项目
教育部重点科研项目(No.1081741) （No.1081741）
重庆市自然科学基金资助项目(No.CSTC.2008BB3169) （No.CSTC.2008BB3169）
