基于虚拟仪器的激光光斑自动采集与分析系统

HE Xin; ZHANG Bin; ZHOU Kun

doi:10.3969/j.issn.1001-3806.2012.02.025

为了得到激光光束的某些参量,为设计和改进激光器提供依据,建立了一套激光光斑自动采集与分析系统,搭建了实验平台,并编写了一套基于虚拟仪器开发平台LabVIEW及其图像处理软件包NI Vision的用于采集和分析激光光斑的软件。该软件能实时显示光斑中心位置的漂移轨迹、在x方向和y方向漂移的标准差及其随时间变化的趋势等,同时,还能对基模高斯光束进行分析。经过去噪处理的光斑图样能以3维灰度图的形式显示出来,得到任意剖面的光强信息,并以此进行高斯曲线拟合,得出拟合参量以判断光强曲线接近高斯曲线的程度。结果表明,这种系统可以动态地采集光斑信息并进行处理,具有实时性。

基于虚拟仪器的激光光斑自动采集与分析系统

Corresponding author: ZHANG Bin, kd208ZB@sina.com;

1. College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China;

2. Reprensentative Office of Chinese Naval in Hunan, Changsha 410000, China

Received Date: 2011-05-09

Accepted Date: 2011-05-26

Available Online: 2012-03-25

Abstract: 为了得到激光光束的某些参量,为设计和改进激光器提供依据,建立了一套激光光斑自动采集与分析系统,搭建了实验平台,并编写了一套基于虚拟仪器开发平台LabVIEW及其图像处理软件包NI Vision的用于采集和分析激光光斑的软件。该软件能实时显示光斑中心位置的漂移轨迹、在x方向和y方向漂移的标准差及其随时间变化的趋势等,同时,还能对基模高斯光束进行分析。经过去噪处理的光斑图样能以3维灰度图的形式显示出来,得到任意剖面的光强信息,并以此进行高斯曲线拟合,得出拟合参量以判断光强曲线接近高斯曲线的程度。结果表明,这种系统可以动态地采集光斑信息并进行处理,具有实时性。

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Reference (7)

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[1]	WANG Ch Y.Detection and control of the drift of a laser's facula[D].Changsha:National University of Defense Technology,2006:l(in Chinese).
[2]	LI L,GONG M L,LIU X Zh,et al.Asoftware for laser beam analysis[J].Laser Technology,2000,24(6):405-408(in Chinese).
[3]	ZHOU J L,LIU J H,L1 WEIPING,et al.The system of image processing for lasr spot recognition based on virtual instrument[J].Information Technology,2003,27(11):10-12(in Chinese).
[4]	LAN Zh L,YANG X F.Practical improvement of laser spot center location algorithm[J].Computer Engineering,2008,34(6):7-9(in Chinese).
[5]	KONG B,WANG Zh,TAN Y Sh.Algorithm of laser spot detection based on circle fitting[J].Infrared and Laser Engineering,2002,31(3):275-279(in Chinese).
[6]	XU Y M,XING Ch,LIU G L,et al.Comparison of several methods of laser spot center detection[J].Hydrographic Surveying and Charting,2007,27(2):74-76(in Chinese).
[7]	XIANG X Y,CHEN H Q,WU P,et al.Adaptive measuring algorithm of laser beam width based on CCD[J].Laser Technology,2006,30(5):552-554(in Chinese).

基于虚拟仪器的激光光斑自动采集与分析系统

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