基于激光三角法的零件表面粗糙度在线测量  

Surface Roughness Real Time Measurement Method of Parts Based on Laser Trigonometry

作　　者：谭海艳[1] 赵小军[1] 

机构地区：[1]九江学院江西省数控技术与应用重点实验室,江西九江332005

出　　处：《机床与液压》2010年第6期67-68,48,共3页Machine Tool & Hydraulics

摘　　要：介绍一种零件表面粗糙度的激光在线测量系统,该系统基于激光三角测量系统,用无衍射激光光束作光源,用高精度的CCD摄像机作位移传感器,通过计算机进行数据处理得到表面粗糙度值。以车削表面为例,用触针法测得的表面粗糙度值和用该系统测得的表面粗糙度值相近,说明实现表面粗糙度在线检测是可能的,该测量方法具有测量速度快和能够显示被测表面的具体形貌等优点。A kind of surface roughness real time measurement method of parts was introduced based on laser technique. This system was based on triangulation measurement system, using non-diffraction laser beam as light source and high accuracy CCD vidicon as displacement sensor. The surface roughness value was obtained by computer data processing. Experimental results show that surface roughness data measured by stylus method are similar to that of triangulation system. It indicates the real time measurement is possible and this method has the advantages of rapid measurement velocity and the surface characteristic of the parts can be obtained.

关 键 词：表面粗糙度 He—Ne激光器 CCD摄像机 激光三角法 

分 类 号：TG84[金属学及工艺—公差测量技术]