| 基于LED光源痕量二氧化氮气体的检测 |
| |
| 引用本文： | 孙秀平,张喜和,王达成,冯克成,那延祥,刘建国,刘文清. 基于LED光源痕量二氧化氮气体的检测[J]. 光谱学与光谱分析, 2009, 29(6): 1672-1674. DOI: 10.3964/j.issn.1000-0593(2009)06-1672-03 |
| |
| 作者姓名： | 孙秀平 张喜和 王达成 冯克成 那延祥 刘建国 刘文清 |
| |
| 作者单位： | 长春理工大学理学院,吉林,长春,130022;吉林大学物理学院,吉林,长春,130021;长春理工大学理学院,吉林,长春,130022;中国科学院安徽光学精密机械研究所,安徽,合肥,230031 |
| |
| 摘 要： | 随着现代化工业的发展,大气污染越来越严重,吸收光谱法是检测大气污染的重要手段.NO2是大气污染的主要污染物之一,文章将发光二极管作为光源,选择发光光谱范围处于NO2强吸收峰位置的发光二极管,通过测虽含有NO2污染物的吸收光谱,利用最小二乘法,将实验得到的吸收光谱与标准谱作拟合运算,反演计算出污染物浓度.分析了检测的幕本原理,研究了光谱分析过程,包括实验光谱与标准光谱的拟合、浓度的反演计算等数据处理过程.具体利用NO2在300～500 nm光谱范围内有强吸收的特点,测量了样品中NO2的浓度.实验使用发光二极管作为光源,使检测变得方便快捷,实验装置便于携带,可以随时对待测场所实现高精度的实时在线检测.
|
| 关 键 词： | 吸收光谱 NO2 发光二极管 |
| 收稿时间： | 2008-02-12 |
LED Illuminant-Based Detection of Trace NO_2 Gases |
| |
| SUN Xiu-ping,ZHANG Xi-he,WANG Da-cheng,FENG Ke-cheng,NA Yan-xiang,LIU Jian-guo,LIU Wen-qing. LED Illuminant-Based Detection of Trace NO_2 Gases[J]. Spectroscopy and Spectral Analysis, 2009, 29(6): 1672-1674. DOI: 10.3964/j.issn.1000-0593(2009)06-1672-03 |
| |
| Authors: | SUN Xiu-ping ZHANG Xi-he WANG Da-cheng FENG Ke-cheng NA Yan-xiang LIU Jian-guo LIU Wen-qing |
| |
| Affiliation: | SUN Xiu-ping1,2,ZHANG Xi-he1,WANG Da-cheng1,FENG Ke-cheng1,NA Yan-xiang1,LIU Jian-guo3,LIU Wen-qing31.College of Science,Changchun University of Science , Technology,Changchun 130022,China2.College of Physics,Jilin University,Changchun 130021,China3.Anhui Institute of Optics , Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China |
| |
| Abstract: | Light-emitting diode was used as illuminant in the present paper.The light-emitting diode was chosen according to the high absorption in the range of absorption spectrum of NO2.The pollutant concentration can be calculated by measuring the absorption spectrum,and fitting the experimental absorption spectrum and normal absorption spectrum by means of least square fitting method.The method of measuring nitrogen dioxide concentration making use of absorption spectra was studied,the basic principle was analyzed... |
| |
| Keywords: | NO2 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
