| 用光学差分吸收光谱监测大气中污染气体浓度 |
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| 引用本文： | 章江英,谢建平,明海,吴云霞,谢品华,刘文清.用光学差分吸收光谱监测大气中污染气体浓度[J].物理实验,2004,24(8):8-11. |
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| 作者姓名： | 章江英 谢建平 明海 吴云霞 谢品华 刘文清 |
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| 作者单位： | 1. 中国科技大学,物理系,安徽,合肥,230026
2. 中国科学院,安徽光学精密机械研究所,安徽,合肥,230031 |
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| 摘 要： | 在实验室内模拟测量了实际大气中污染气体的差分吸收光谱 (DOAS) .本文在介绍差分吸收光谱技术同时 ,分析计算了污染气体的浓度 .实验设计中被测气体为大气中的 2种主要污染气体 :工业锅炉的主要排放物SO2 和机动车尾气的主要成分NO .用氘灯作为光源测量其在紫外波段的特征吸收 ,并通过光纤束连接光栅光谱仪 ,由计算机自动采集和处理数据 .
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| 关 键 词： | 光学差分吸收光谱 气体浓度 特征吸收 |
| 文章编号： | 1005-4642(2004)08-0008-04 |
Experiments on differential optical absorption spectrometry for atmospheric pollutants monitoring |
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| ZHANG Jiang-ying,XIE Jian-ping,MING Hai,WU Yun-xia,XIE Pin-hua,LIU Wen-qing.Experiments on differential optical absorption spectrometry for atmospheric pollutants monitoring[J].Physics Experimentation,2004,24(8):8-11. |
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| Authors: | ZHANG Jiang-ying XIE Jian-ping MING Hai WU Yun-xia XIE Pin-hua LIU Wen-qing |
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| Institution: | ZHANG Jiang-ying1,XIE Jian-ping1,MING Hai1,WU Yun-xia1,XIE Pin-hua2,LIU Wen-qing2 |
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| Abstract: | The differential optical absorption spectrometry (DOAS) for atmospheric pollutant monitoring is simulated in laboratory. And the concentration of pollutants is analyzed and calculated. The method of DOAS is used to measure the concentrations of SO 2 and NO in laboratory. The UV light from deuterium lamp is absorbed by pollutant gas and then transmitted to the grating spectrometer which is connected to computer. And the experimental data is collected and processed automatically. |
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| Keywords: | DOAS concentration of pollutants characteristic absorption |
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