激光三角法测量中被测物表面特性对测量精度影响的分析  

Analysis for the Effect of Measured Surface Character to the Measuing Accuracy of Laser Triangulation Method Measurement

作　　者：周坤[1] 季海焦[1] 刘海滨[1] 

机构地区：[1]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《光学与光电技术》2009年第2期70-73,共4页Optics & Optoelectronic Technology

摘　　要：激光三角法测量是现代测量技术中重要的测量方法,但其测量精度受自身系统、环境以及被测物表面特征等因素的影响。针对被测表面的特性是激光三角法产生测量中产生测量误差的主要因素,根据特定颜色所造成误差的重复特性提出了数据标定的改进方法;针对表面粗糙度,通过在光路适当位置安装偏振片有效消除了镜面反射,采用双光路设计有效改善了被测物倾斜带来的误差。最后通过实验验证了改进方法的有效性。Laser triangulation method measurement is an important resolution in modern measurement with the characters of non-contact high accuracy, but the measuring accuracy is affected by the system itself and many other factors. In this paper, the principle of laser triangulation measurement is first briefly given. Then errors caused by the colours are corrected with data demarcate method. The surface roughness is eliminated by adding the polarize piece. In the end the experiment is given to test the validity of the improved method.

关 键 词：激光测量 三角法 误差分析 精度 

分 类 号：TN249[电子电信—物理电子学]