变光源相移投影莫尔3维轮廓测量方法和系统  

A Novel Method and System for 3 D Profile Measurement Based on Projection Moire with Changing Lights for Phase Shifting

作　　者：李根乾[1] 罗子健[1] 王学礼[2] 谭玉山[2] 

机构地区：[1]西北工业大学4系 [2]西安交通大学激光与红外应用研究所

出　　处：《中国机械工程》2002年第8期699-701,共3页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 (5 9875 0 71)

摘　　要：利用计算机实时控制变光源相移技术 ,设计出一种新的投影莫尔3维轮廓投影成像测试系统 ,使系统的测试速度大幅度提高。采用垂直投影和双 CCD倾斜成像机构 ,消除了反光和阴影 ,光强照明均匀 ,测量面积可达35 0 mm× 35 0 mm,系统测量精度达到 40 μm。试验结果表明 ,所提出的方法和系统为大面积物体A novel method and system for 3D profile measurement were developed based on projection Moire with changing lights for phase shifting through real time computer control.and the measuring speed has been raised significantly.Because the structure of vertical projection and two CCDs incline imaging were employed, the reflection and shadow were eliminated, the light field gets more uniform, the measuring area reaches 350 mm×350 mm,and the measuring error is within 40μm. Experimental results indicate that the proposed method and system are suitable for big area 3D profile measurement with high speed.

关 键 词：投影莫尔 3维测量 变光源 相移 测量方法 

分 类 号：TG806[金属学及工艺—公差测量技术]