| 摘要: |
| 针对HITRAN数据库缺乏CO2在低温条件下的吸收谱线研究数据的问题，对波长位于1 572.34 nm处的低温下CO2吸收谱线进行了研究，得到250~500 K范围内CO2吸收系数的温度依赖经验公式.将该经验公式与文献中的实验数据进行计算对比，得到了气体质量分数平均误差为3.305%的对比结果. |
| 关键词: HITRAN数据库 谱线强度 吸收系数 温度 |
| DOI：10.3969/J.ISSN.1000-5137.2019.01.014 |
| 分类号: |
| 基金项目: |
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| The relationship between low temperature CO2 absorption coefficient and temperature |
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TAO Kaichen, WU Xiangnong
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College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, 200234 Shanghai, China
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| Abstract: |
| This article studied the absorption line of carbon dioxide gas with wavelength at 1 572.34 nm in the low temperature range,which was lack of data for CO2 absorption lines at low temperatures in the absorption spectrum data of HITRAN database.An empirical formula for the temperature dependence of carbon dioxide gas absorption coefficient in the temperature range of 200~500 K was obtained.Finally,the empirical formula was compared with the experimental data in the literature to calculate the gas concentration,by which an average error of 3.305% was achieved. |
| Key words: HITRAN database spectra intensity absorption coefficient temperature |
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