| 差分光学吸收光谱法精确测量煤矿瓦斯浓度 |
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| 引用本文： | 周孟然,汪世美.差分光学吸收光谱法精确测量煤矿瓦斯浓度[J].煤炭科学技术,2004,32(3):1-3. |
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| 作者姓名： | 周孟然 汪世美 |
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| 作者单位： | 1. 安徽理工大学,电气工程系,安徽,淮南,232001;中国科学院,安徽光学精密机械研究所,安徽,合肥,230031
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： | 差分吸收光谱技术被广泛应用于测量大气中微量元素的浓度，并利用最小二乘法来反演待测气体的浓度，该方法是利用激光器发出激光并接收，在传输中，由于瓦斯气体分子在一定波段对光有吸收特性，使光谱具有了瓦斯的特性，在通过与光源发出的光进行比较，反演瓦斯气体在矿井中的浓度。它能实现在线自动监测。
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| 关 键 词： | 差分光学吸收光谱 瓦斯 在线监测 |
| 文章编号： | 0253-2336(2004)03-0001-03 |
| 修稿时间： | 2003年12月17 |
Accurately measurement of mine gas density with differential optical absorption spectrometry |
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| ZHOU Meng-ran.Accurately measurement of mine gas density with differential optical absorption spectrometry[J].Coal Science and Technology,2004,32(3):1-3. |
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| Authors: | ZHOU Meng-ran |
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| Affiliation: | ZHOU Meng-ran~ |
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| Abstract: | The technology of differential optical absorption spectrometry has been widely applied to measure the density of the microelements in atmosphere. The method is to use laser instrument to emit and receive the laser. During the transmission, due to gas molecule has sorption characteristics to light in certain wave band, so the spectrum has gas characteristics. In comparison with the light from the light source, the gas can reversibly be calculated the density of the gas in mine. This technology can be used for an on line auto monitoring and measurement. |
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| Keywords: | differential optical absorption spectrometry Technology gas on line monitoring and measurement |
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