Research on coal mine gas detection with WMS technique

被引：0
|
作者：
Zhou Mengran [1 ]
Li Zhenbi [1 ]
机构：
[1] Anhui Univ Sci & Technol, Dept Elect, Anhui 232001, Peoples R China
来源：
PROGRESS IN MINING SCIENCE AND SAFETY TECHNOLOGY, PTS A AND B | 2007年
关键词：
coal-mine gas; TDLAS; WMS; secondary harmonic detection;
D O I：
暂无
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
The tunable diode laser absorption spectroscopy (TDLAS) technique, used to detect coal-mine gas, has many prominent virtues: high sensibility, sharp selectivity, quick response and so on. A method of detecting secondary harmonic of methane in coal-mine of the concentration from 0.04% to 10%, by wavelength modulation spectroscopy (WMS) technique, is proposed. Both theoretic analysis and experimental result prove that the magnitude of secondary harmonic is proportional to the concentration of gas in this concentration range. That provides a totally new method to detect the concentration of coal-mine gas.
引用
收藏
页码：933 / 937
页数：5
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