| 一种基于热电效应的微型CO2浓度检测系统 |
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| 引用本文： | 陈晓宁,刘建国,阎庆,王强,黄学平,张延长.一种基于热电效应的微型CO2浓度检测系统[J].量子电子学报,2011,28(6):726-729. |
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| 作者姓名： | 陈晓宁 刘建国 阎庆 王强 黄学平 张延长 |
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| 作者单位： | 1 安徽大学电气工程与自动化学院，安徽 合肥 230039；
2 中国科学院环境光学与技术重点实验室，安徽 合肥 230031 |
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| 基金项目： | 中国科学院环境光学与技术重点实验室开放基金(2005DP173065-11-01); 安徽大学青年基金(02303305)资助项目 |
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| 摘 要： | 基于CO2在4.26um处的特征吸收，采用抽取式密闭小型怀特池以及热电传感器，设计了一种微型CO2气体检测系统，并进行了实际测量，反演了CO2浓度，相关性达到0.99973，最低检测CO2浓度为1ppm。此系统结构简单，运行稳定，避免了光学轮盘调制方式的复杂结构，减小了开放式结构对探测器带来的不稳定影响。
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| 关 键 词： | 光电子学 热电效应 微型系统 CO2检测 |
| 收稿时间： | 2011-09-19 |
| 修稿时间： | 2011-09-26 |
Concentration detecting system of CO_2 based on thermoelectric effect |
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| CHEN Xiao-ning,LIU Jian-guo,YAN Qing,WANG Qiang,HUANG Xue-ping,ZHANG Yah-chang.Concentration detecting system of CO_2 based on thermoelectric effect[J].Chinese Journal of Quantum Electronics,2011,28(6):726-729. |
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| Authors: | CHEN Xiao-ning LIU Jian-guo YAN Qing WANG Qiang HUANG Xue-ping ZHANG Yah-chang |
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| Affiliation: | 1 Institute of Electrical Engineering and Automation, Anhui University, Hefei 230039, China;
2 Key Laboratory of Environment Optics & Technology, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | Based on the characteristic absorption spectrum of CO2 at 4.26um, a micro gas detection system of CO2 concentration is designed with the hermetic extractive White cell and thermoelectric sensor. Practical measurement were carried out and the concentration of CO2 were retrieved. Correlation coefficient and detection limit are 0.99973 and 1ppm, respectively.. The system have the advantages of simple structure and stable operation, avoiding the complex structure of the optical disk modulation method, and reducing the instability impacts on detector due to its open structure. |
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| Keywords: | spectroscopy thermoelectric effect micro system carbon dioxide detection |
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