| 基于可调谐半导体激光吸收光谱的酒精蒸汽检测方法 |
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| 引用本文： | 耿辉,刘建国,张玉钧,阚瑞峰,许振宇,姚路,阮俊. 基于可调谐半导体激光吸收光谱的酒精蒸汽检测方法[J]. 物理学报, 2014, 63(4): 43301-043301. DOI: 10.7498/aps.63.043301 |
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| 作者姓名： | 耿辉 刘建国 张玉钧 阚瑞峰 许振宇 姚路 阮俊 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所, 环境光学与技术重点实验室, 合肥 230031 |
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| 基金项目： | 安徽省科技攻关项目（批准号：1001130610）资助的课题. |
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| 摘 要： | 采用窄带半导体激光器开展了酒精蒸汽浓度检测方法研究.使用酒精分子在7180 cm-1附近的一个相对较窄的吸收峰作为酒精分子的鉴别信息.为消除水汽对酒精分子检测的干扰,提出了建立多元线性回归方程拟合求解多分子吸收共存的问题.实验表明,系统的检测限达到25 ppm·m.
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| 关 键 词： | 光谱学 酒精蒸汽 半导体激光器 宽带吸收 |
| 收稿时间： | 2013-09-14 |
Ethanol vapor measurement based on tunable diode laser absorption spectroscopy |
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| Geng Hui,Liu Jian-Guo,Zhang Yu-Jun,Kan Rui-Feng,Xu Zhen-Yu,Yao Lu,Ruan Jun. Ethanol vapor measurement based on tunable diode laser absorption spectroscopy[J]. Acta Physica Sinica, 2014, 63(4): 43301-043301. DOI: 10.7498/aps.63.043301 |
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| Authors: | Geng Hui Liu Jian-Guo Zhang Yu-Jun Kan Rui-Feng Xu Zhen-Yu Yao Lu Ruan Jun |
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| Affiliation: | Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | A method of detecting ethanol vapor concentration using a narrow bandwidth tunable diode laser is studied. The relatively narrow absorption feature in the vicinity of 7180 cm-1 is used as an identification of ethanol vapor. To eliminate the interference of water vapor, multidimensional linear regression analysis is used to solve the problem of multiple molecule absorptions. The detection limit is obtained to be 25 ppm·m experimentally. |
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| Keywords: | spectroscopy ethanol vapor diode laser broadband absorption |
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