摘要
介绍了一种利用激光多普勒效应测量物体长度的方法，给出了测量光路结构并推导出了激光测长原理：主要是利用激光多普勒效应来测量运动物体的速度，进而测量出物体长度．由于采用计算机进行信号处理，其测量精度误差小于１％．由于它属于非接触性测量，适合于电缆、管材。
A new method of measure the length by laser Doppler effect is introduced.Its optical structure and results of the measuring theory by laser is described.Its measuring accuracy is better than 1% with computer processor.This measuring method belongs to noncontact measurement and can be used for measuring the length of various electrical line,metal materials,paper and so on in industrial production.
出处
《郑州轻工业学院学报》
1997年第1期18-21,共4页
Journal of Zhengzhou Institute of Light Industry（Natural Science）
关键词
激光器
多普勒效应
长度测量
速度测量
lasers
doppler effect
length measurement
velocity measurement
