光栅莫尔条纹细分技术的研究  

Study on the subdividing technique for morie fringes of grating

作　　者：李欣[1] 黄世涛[1] 张云[1] 冯之敬[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《现代制造工程》2004年第6期83-85,共3页Modern Manufacturing Engineering

摘　　要：光栅是一种精密测量装置 ,测量原理是以光栅移动形成的莫尔条纹为基础。介绍输出正弦信号和方波信号的光栅在位移测量中脉冲细分的常用方法 ,分析其中两种方法的电路与波形并对其进行实验 。Grating is one measuring device of high precision,and its measuring principle is based on the morie fringes which is created by grating moving.Introduces the common methods which the grating of sinusoidal and square signal outputs utilizes in pulses subdividing during displacement measuring,and specially analyzes circuits and waveforms of two methods.Finally,one experiment is done on the two methods,and it proves the correctness of subdividing principle.

关 键 词：光栅 莫尔条纹 脉冲细分 

分 类 号：TH164[机械工程—机械制造及自动化]