| 可调谐半导体激光吸收光谱甲烷浓度监测系统 |
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| 引用本文： | 蒋亚龙,蔡霆力,祝玉泉.可调谐半导体激光吸收光谱甲烷浓度监测系统[J].电子测量与仪器学报,2011,25(3):265-271. |
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| 作者姓名： | 蒋亚龙 蔡霆力 祝玉泉 |
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| 作者单位： | 蒋亚龙,Jiang Yalong(安徽新华学院土木与工业工程学院,合肥,230088);蔡霆力,祝玉泉,Cai Tingli,Zhu Yuquan(中国科学技术大学火灾科学国家重点实验室,合肥,230027) |
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| 基金项目： | 安徽省青年教师，安徽省自然科学基金项目 |
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| 摘 要： | 以中心波长为1 650 nm的激光光源作为探测光源,并结合波长调制光谱以及谐波探测技术,设计了一套基于TDLAS(可调谐二极管激光吸收光谱)技术的CH4气体浓度探测系统.结合长光程测量池,以浓度为99.999%的高纯N2为背景气体,对8种浓度的CH4气体进行了测量,利用配置的101×10-6 CH4气体对系统进行了稳定...
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| 关 键 词： | 可调谐激光吸收光谱 谐波检测 波长调制 |
Methane monitoring system based on absorption spectroscopy of tunable diode laser |
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| Jiang Yalong,Cai Tingli,Zhu Yuquan.Methane monitoring system based on absorption spectroscopy of tunable diode laser[J].Journal of Electronic Measurement and Instrument,2011,25(3):265-271. |
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| Authors: | Jiang Yalong Cai Tingli Zhu Yuquan |
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| Affiliation: | Jiang Yalong1 Cai Tingli2 Zhu Yuquan2(1.College of Civil and Industrial Engineering,Anhui Xinhua University,Hefei 230088,China,2.State Key Laboratory of Fire Science,University of Science and Technology of China,Hefei 230027,China) |
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| Abstract: | A methane concentration monitoring system based on tunable diode laser absorption spectroscopy is de-signed,which takes semiconductor diode laser with center wavelength of 1 650 nm as light source,and combines wave-length modulation spectroscopy and harmonic detection technology.TDLAS is a gas detection technique with high sensi-tivity,high selectivity and rapid responsibility.Measured 8 kinds of concentrations of CH4 gas by combining long-path measurement cell with high-purity N2(99.999%)which as backgroun... |
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| Keywords: | TDLAS harmonic measurement wavelength modulation |
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