摘要
介绍了一种光栅横向位移遥测传感器,被测位移和光束方向垂直。该系统利用激光光栅的多普勒效应进行测量,采用差动光路结构。理论计算和实验表明,此系统测量范围大、信号质量好、分辨率和测量精度高,并具有很大的景深范围,可应用于具体生产环境中的位移遥测。
A transducer for lateral remote displacement measurement based on grating laser Doppler effect is introduced.The direction of movement is allowed to be perpendicular to the bisector laser beams.The measuring principle of this system is based on grating Doppler effect.A differential optical sturcture is accepted.The results of experiments and theorectical analysis show that this system gives wide measurement range,high quality signals with high resolution and accuracy,and wide range of focal depth.All of these make it very useful in the practice.
出处
《光学精密工程》
EI
CAS
CSCD
1999年第1期85-92,共8页
Optics and Precision Engineering
基金
国家自然科学基金
关键词
光栅
多普勒效应
横向位移
测量
遥测
传感器
Grating Doppler effect,Focal depth,Lateral displacement measurement,Remote measurement