| 便携式差分吸收光谱气体监测仪的研究 |
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| 引用本文： | 刘文彬,谢品华,司福祺,彭夫敏,徐晋,张英华,李昂,朱燕舞,秦敏.便携式差分吸收光谱气体监测仪的研究[J].光学技术,2008,34(Z1). |
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| 作者姓名： | 刘文彬 谢品华 司福祺 彭夫敏 徐晋 张英华 李昂 朱燕舞 秦敏 |
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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： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 差分吸收光谱技术(DOAS)是利用气体分子在紫外/可见波段的特征吸收来精确解析其浓度的光学方法,在大气污染成分探测方面具有广泛的应用。将差分吸收光谱法与多次反射池技术相结合,研制出了便携式污染气体在线连续监测仪,阐述了系统的工作原理和设计方法,并通过不同浓度的SO2标准气体对系统进行了测试。结果表明,该仪器可满足污染源、污染泄漏、应急监测的要求。
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| 关 键 词： | 差分吸收光谱 便携式 多次反射池 环境监测 |
Study of portable DOAS device of monitoring gas |
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| LIU Wen-bin,XIE Pin-hua,SI Fu-qi,PENG Fu-min,XU Jin,ZHANG Ying-hua,LI Ang,ZHU Yan-wu,QIN Min.Study of portable DOAS device of monitoring gas[J].Optical Technique,2008,34(Z1). |
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| Authors: | LIU Wen-bin XIE Pin-hua SI Fu-qi PENG Fu-min XU Jin ZHANG Ying-hua LI Ang ZHU Yan-wu QIN Min |
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| Abstract: | Differential Optical Absorption Spectroscopy technique(DOAS) has been used to measure trace gases in the atmosphere.This technique uses the gases' strongly structured absorption of radiation in the UV and visible spectral range to retrieve their concentration.Based on the combination of DOAS and multiple-pass cell a portable device is developed for polluted gases real time monitoring.The working principle of the system and the design method are described.The system is tested by the SO2 gas with different concentration and the result demonstrates that this device can meet all the requirements of polluted source and polluted gases leak monitoring. |
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| Keywords: | DOAS portable multiple-pass cell monitoring of environment |
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