污染气团扫描式FTIR被动遥测系统  

Scanning passive FTIR remote sensing system for pollution gas

作　　者：焦洋[1] 徐亮[1] 高闽光[1] 金岭[1] 童晶晶[1] 李胜[1] 魏秀丽[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所,中国科学院环境光学与技术重点实验室,安徽合肥230031

出　　处：《激光与红外》2013年第9期1021-1024,共4页Laser & Infrared

基　　金：中国科学院战略性先导科技专项(XDB05040500);国家自然科学基金项目(No.40905011);国家自然科学基金项目(No.41105022)资助

摘　　要：大气中某点的污染气体可利用FTIR技术实现远程被动遥测,而对于突发性污染气体泄露事故的检测和预警,污染气团的浓度分布是重要参数。根据以上需求设计了扫描式FTIR被动遥测系统,系统由FTIR光谱仪、可见光系统、扫描系统及计算机构成,系统控制软件使用LabVIEW编写。应用FTIR被动遥测模型反演算法获取污染气体浓度,并结合扫描位置参数获取污染气团分布信息,以伪彩色浓度分布图叠加可见光图像的形式显示结果。验证实验表明,系统运行稳定,可有效探测目标区域污染气团浓度分布,具有良好的应用前景。Passive Fourier-transform infrared（Passive-FTIR） spectroscopy allows identification of the air pollution.However,information about the position and the distribution of pollution gas is essential for the detection and early warning in the case of the release of a hazardous cloud.In this work,a Scanning Passive FTIR Remote Sensing System,which is composed of an interferometer,a video system,a scanning system and a computer has been developed.The system control software is programmed with LabVIEW.The concentration retrieval algorithm for the passive FTIR remote measurement is presented to get concentration path length of the pollution gas.The results are visualized by a video image,and overlaid by false color concentration distribution image.The validation experiment shows that the system is stable and effective.It has a good prospect in detecting pollution gas distribution.

关 键 词：FTIR 被动遥测 伪彩色浓度分布图 LABVIEW 

分 类 号：TN219[电子电信—物理电子学]