Selection of light source at measuring thickness of heat radiation plate based on laser triangulation

YANG Xin; LIU Tie-gen; SONG Dian-you; LI Bao-qiang

doi:10.13873/j.1000-97872009.10.025

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Selection of light source at measuring thickness of heat radiation plate based on laser triangulation

更新时间：2025-09-11

- Selection of light source at measuring thickness of heat radiation plate based on laser triangulation
- Vol. 28, Issue 10, Pages: 29-31(2009)
- 作者机构：
  
  天津大学精密仪器与光电子工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872009.10.025
  CLC： TP274.5
- Published：2009
- 稿件说明：
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[1]阳鑫,刘铁根,宋殿友,李宝强.激光三角法测量热辐射板厚度时光源的选择[J].传感器与微系统,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.
[1]阳鑫,刘铁根,宋殿友,李宝强.激光三角法测量热辐射板厚度时光源的选择[J].传感器与微系统,2009,28(10):29-31. DOI： 10.13873/j.1000-97872009.10.025.

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.

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.

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references

光线弯曲对激光测量热钢板厚度的影响 [J]. 黄战华,蔡怀宇,李贺桥,张以谟. 光电工程 . 2001(06)

位置指示光源对PSD定位精度影响的实验研究 [J]. 吕爱民,袁红星,贺安之. 激光技术 . 2000(03)

一维 PSD 信号调理电路及其应用 [J]. 王占强,徐伟弘,汪开源. 仪表技术与传感器 . 1997(12)

位置敏感器件（PSD）的杂光干扰研究 [J]. 王广志,丁海曙,丁辉. 清华大学学报(自然科学版) . 1997(01)

基于PSD的测距系统研究 [D]. 张华. 浙江大学 2005

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