Multi-channel optical fiber methane monitoring system based on laser absorption spectroscopy

被引：0
|
作者：
Zhao, Yanjie [1 ]
Wei, Yubin [1 ]
Li, Yanfang [1 ]
Zhang, Tingting [1 ]
Shang, Ying [1 ]
Wang, Chang [1 ]
Liu, Tongyu [1 ]
Yu, Qing [2 ]
机构：
[1] Shandong Acad Sci, Laser Inst, Jian 250014, Jiangxi, Peoples R China
[2] Shandong Metrol Inst, Jian 250014, Jiangxi, Peoples R China
来源：
2012 ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2012年
关键词：
Fiber optic sensor; Laser Absorption Spectroscopy; Methane monitor; Ventilation air methane; DIODE-LASER;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A multi-channel optical fiber methane monitoring system is researched for detecting the concentration of methane gas. In this system, distributed feedback laser is employed as light source. The narrow absorption line of the laser could effectively eliminates the cross sensitivity to moisture, ethane or other gases. Since the sensor head is made without any active electrical components, it is intrinsically safe when used in the hazard environment such as coal mines. The results show that the monitoring system has a great application in the comprehensive utilization of coalmine methane and ventilation air methane.
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页数：4
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