| 相关检测技术在CO气体监测系统中的应用 |
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| 引用本文： | 司福祺,刘建国,谢品华,陈小宁,刘文清. 相关检测技术在CO气体监测系统中的应用[J]. 光电工程, 2006, 33(7): 74-77 |
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| 作者姓名： | 司福祺 刘建国 谢品华 陈小宁 刘文清 |
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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,安徽,合肥,230031 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 相关检测技术是实现微弱信号检测的重要方法。本文介绍了该技术在非分散红外CO气体监测系统中的应用,根据相关检测理论,设计了同步相关检测电路,成功地实现了信号和噪声的分离度。实验表明,设计的基于相关检测的CO监测系统在0~200ppm的测量范围内有10ppb的监测精度。
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| 关 键 词： | 相关检测 非分散红外 环境监测 环境污染 |
| 文章编号： | 1003-501X(2006)07-0074-04 |
| 收稿时间： | 2005-07-27 |
| 修稿时间： | 2005-09-02 |
Application of correlative technology in atmospheric CO monitoring |
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| SI Fu-qi,LIU Jian-guo,XIE Ping-hua,CHEN Xiao-ning,LIU Wen-qing. Application of correlative technology in atmospheric CO monitoring[J]. Opto-Electronic Engineering, 2006, 33(7): 74-77 |
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| Authors: | SI Fu-qi LIU Jian-guo XIE Ping-hua CHEN Xiao-ning LIU Wen-qing |
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| Abstract: | Correlative technology plays an important role in detection of feeble signal. A novel method of Non-dispersion Infrared (NDIR) based on correlative technology for measuring CO trace gas and its application in the field measurement are described in this work. Synchronous correlative circuit designed according to correlative theory is used to separate the signal and noise. It is realized that the system have 0.01ppm resolution in the measure range from 0 to 200ppm. |
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| Keywords: | Correlation detection Non-dispersion infrared Environmental monitoring Environmental pollution |
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