Measurement method for high temperature surface profiling using laser radar system
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摘要: 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.Abstract: 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.
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Keywords:
- laser /
- laser rangefinder /
- laser radar
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[1] 贺安之,罗必凯,苗鹏程. et al.光学学报,1993;13(7):667~669 [1] Max E B,Robert S,David Z.SPIE Proc,1986;726:364~374
[2] Kari M,Juha K,R isto M.A ppl Opt,1993;32:5334~5347
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