光栅多普勒位移遥测技术的研究  

STUDY ON A REMOTE DISPLACEMENT MEASURING SYSTEM BASED ON GRATINGS DOPPLER EFFECT

作　　者：杨鑫[1] 蒋诚志[1] 张国雄[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院

出　　处：《天津大学学报》1999年第4期410-414,共5页Journal of Tianjin University(Science and Technology)

基　　金：国家自然科学基金

摘　　要：提出了一种利用激光光栅的多普勒效应实现光栅横向位移距离高精度遥测的新方法．给出了具体测量原理、系统结构及景深计算的理论公式．理论分析了作为多普勒频移发生器和混频器的反射相位光栅的衍射特性．理论计算和实验表明，此系统测量范围大，信号质量好，分辨力和测量精度高，并具有很大的景深范围。In this paper,a new remote displacement measuring method based on grating Doppler effect is described.The measuring principle,the system structure and the equations of the focal depth are given.The diffraction fringes of the phase grating used as Doppler signals generator and frequency mixer are analyzed theoretically.The results of experiments and theoretical analysis show that this system has such advantages as wide measurement range,high quality signals high resolution and accuracy.It can be used in practice.

关 键 词：多普勒效应 遥测 光栅 位移测量 激光 

分 类 号：TH822[机械工程—仪器科学与技术] TN249[机械工程—精密仪器及机械]