一种提高激光三角法薄板在线厚度测量精度的方法  

A Method for Improving the On-Line Thickness Measurement Precision of Sheet-Board in Laser Triangulation Method

作　　者：王军红[1] 江虹[1] 毛久兵[2] 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010 [2]重庆大学光电学院,重庆404100

出　　处：《河南大学学报（自然科学版）》2011年第6期567-571,共5页Journal of Henan University:Natural Science

基　　金：国家863资助项目(2009AA4Z166);国防基础科研计划资助项目(B3120110005)

摘　　要：提出了利用3个结构相同的激光三角测量模块,结合三同步驱动技术,通过保证上、下激光三角测量模块得到的厚度数据与第3路厚度补偿数据的同步来提高精度的方法.最后,采用统计上、下界法通过随机测试数据对测量系统的收敛性进行了分析.实验结果表明,该方法能够有效提高在线厚度测量精度.This paper proposes a method which utilizes the same three structural modules of laser triangulation measurement in combination with three-synchronous driving technology.Additionally,this method improves the measurement accuracy by ensuring synchronization between thickness-data obtained by the upper and lower laser triangulation modules and compensated thickness-data from the third one.Finally,this paper uses the method of statistical limit superior and limit inferior to analyze convergence of the measurement system through random testing data.The experimental results show that this method can effectively improve the dynamic thickness measurement precision.

关 键 词：激光三角法 在线测量 厚度 同步 

分 类 号：TN247[电子电信—物理电子学]