一种激光雷达系统测定热表面轮廓的方法

Measurement method for high temperature surface profiling using laser radar system

基于ＭａｘＥ．Ｂａｉｒ的相位测距原理［１］，给出一种无合作目标的激光雷达系统，测定热表面轮廓的方法［２，３］。详细分析了高温炉内耐火绝热层的测量条件，论述了激光雷达相位测距仪原理，给出了原理图和光学系统结构图。

In general,the measurement of surface profile of a high temperature body is a difficult problem.We employed a laser radar system,including a laser phase rangefinder,to measure the surface profile of a hot body,and achieved the better measurement precision of 1 cm.In order to achieve higher SNR,we used the view field matching technology of laser emission and receiving,the technologies of laser beam intensity modulation,phase discrimination,and high sensitive APD detector.