| 可调谐半导体激光光谱技术在工业控制监测氧气浓度中的应用 |
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| 引用本文： | 张志荣,;丁宗富,;丁宗玲,;董凤忠,;张帅,;张玉钧,;阚瑞峰.可调谐半导体激光光谱技术在工业控制监测氧气浓度中的应用[J].烟台师范学院学报(自然科学版),2008(2):142-144. |
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| 作者姓名： | 张志荣 ;丁宗富 ;丁宗玲 ;董凤忠 ;张帅 ;张玉钧 ;阚瑞峰 |
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| 作者单位： | [1]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,安徽合肥230031; [2]鲁东大学物理与电子工程学院,山东烟台264025; [3]东华大学理学院物理系,上海201620 |
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| 基金项目： | 国家“863”计划资助（073H3G1541） |
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| 摘 要： | 采用分布反馈式（Distributed feedback，DFB）半导体激光器作为光源，通过检测760nm附近氧气的一条转动吸收线对排放的气体中氧气的浓度进行实时监测．采用开放式双光程设计，并通过背景信号拟合的方法消除消光系数对检测的影响．实验结果证明，该方法是可以对氧气的实时在线浓度进行检测的一种比较简单的方法．
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| 关 键 词： | 可调谐半导体激光吸收光谱(Tunable DIODE Laser ABSORPTION Spectroscopy TDLAS)技术 在线监测 氧气浓度 |
Application of Tunable Diode Laser Absorption Spectroscopy on Monitoring of Oxygen Concentration in Industry Control |
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| Institution: | ZHANG Zhi-rong, DING Zong-fu, DING Zong-ling, DONG Feng-zhong, ZHANG Shuai, ZHANG Yu-jun, KAN Rui-feng (1. Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 2. School of Physics and Electronic Engineering, Ludong University, Yantai 264025, China; 3. Physics Department, Donghua University, Shanghai 201620, China) |
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| Abstract: | Using a telecom distributed-feedback （DFB） diode laser as optical source, a rotational absorption line of O2 near 760 nm has been used for real time O2 concentration measurement. The open path optical system is taken to avoid the influence of optical extinction coefficient fluctuation by background fitting and subtracting. The results show that the system can meet the demands of in situ measurement of combustion flue gas O2 in industrial environments. |
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| Keywords: | tunable diode laser absorption spectroscopy （TDLAS） on-line monitoring oxygen concentration |
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