| 差分吸收光谱法测量大气污染的测量误差分析 |
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| 引用本文： | 周斌,刘文清,齐锋,李振璧,崔延军. 差分吸收光谱法测量大气污染的测量误差分析[J]. 光学学报, 2002, 22(8): 57-961 |
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| 作者姓名： | 周斌 刘文清 齐锋 李振璧 崔延军 |
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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监测研究室,合肥,230031 |
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| 基金项目： | 中国科学院知识创新工程 (kgcx2 4 0 3)资助课题 |
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| 摘 要： | 差分吸收光谱技术被广泛地应用于测量大气中微量元素的浓度，尽管该技术利用最小二乘法来反演待测气体的浓度，能够得到很高的测量精度。但是，由于仪器本身的噪声以及测量波段其它气体的干扰等，使得仪器的测量有一定的误差，而且上述因素还决定着仪器的测量下限。对差分吸收光谱方法的测量误差以及引起误差的原因作了详细的分析。
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| 关 键 词： | 大气污染 差分吸收光谱 误差分析 环境监测 相对测量误差 测量方法 |
| 收稿时间： | 2001-08-03 |
Error Analysis in Differential Optical Absorption Spectroscopy |
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| Zhou Bin Liu Wenqing Qi Feng Li Zhenbi Cui Yanjun. Error Analysis in Differential Optical Absorption Spectroscopy[J]. Acta Optica Sinica, 2002, 22(8): 57-961 |
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| Authors: | Zhou Bin Liu Wenqing Qi Feng Li Zhenbi Cui Yanjun |
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| Abstract: | The differential optical absorption spectroscopy (DOAS) has become a widely used method to measure the concentration of trace gases in the atmosphere. By using the least squares fits of reference spectra to the measurement spectra, it usually has a high measurement precision. But in order to determine the detection limit, the error must be considered seriously. The measurement error in DOAS is analyzed, it is caused mainly by noise, selection of waveband and interferences of other trace gases. The relationship between error and those factors is discussed. |
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| Keywords: | differential optical absorption spectroscopy analysis of error environmental monitoring relative measurement error |
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