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。
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.
出处
《煤炭科学技术》
CAS
北大核心
2004年第3期1-3,共3页
Coal Science and Technology
关键词
差分光学吸收光谱
瓦斯
在线监测
differential optical absorption spectrometry Technology
gas
on line monitoring and measurement
