YANG Xin, LIU Tie-gen, SONG Dian-you, et al. Selection of light source at measuring thickness of heat radiation plate based on laser triangulation[J]. 2009, 28(10): 29-31.
YANG Xin, LIU Tie-gen, SONG Dian-you, et al. Selection of light source at measuring thickness of heat radiation plate based on laser triangulation[J]. 2009, 28(10): 29-31. DOI: 10.13873/j.1000-97872009.10.025.
激光三角法测量热辐射板厚度时光源的选择
摘要
从位置敏感探测器(PSD)的工作原理出发
讨论了信噪比对系统测量精度的影响
在此基础上
研究了采用激光三角法测量热辐射板厚度时光源的选择问题
模拟热辐射板搭建实验装置
实验结果表明:红外干扰对厚度测量有很大的影响
同时
证明了选用红光激光器比选用绿光激光器更有利于提高测量精度。
Abstract
From the working principle of PSD
the influence of the signal noise ratio(SNR) on the measuring precision of system is discussed.Based on this
the question of how to choose the light source when using the laser triangulation to measure the thickness of heat radiation plate is studied.The experimental device is set up by simulating the heat radiation plate.The experimental result indicates that the infrared jamming has a great influence on measuring the thickness.It proves that selecting the red light laser is more conducive to improve the measuring accuracy than selecting the green light laser.