[1] [1] Zheng Longjiang, Li Peng, Qin Ruifeng et al.. Research situation and developing tendency for optical measurement technology of gas density［J］. Laser & Optoelectronics Progress, 2008, 45(8): 24～32

[2] [2] Liu Zhicun. Variable current detection of mine methane using catalytic sensor［J］. J. Transducer Technology, 2003, 22(11): 24～26

[3] [3] Wang Wencui, Luan Meisheng, Yu Tongyan. Instrumentation for methane concentration detecting based on NDIR and the analysis of disturbances［J］. Infrared Technology, 2009, 31(8): 458～460

[4] [4] Zhao Jianhua, Zhao Chongwen, Wei Zhoujun et al.. Study on monitoring multi-component toxic gases based on near-infrared spectroscopic method［J］. Acta Optica Sinica, 2010, 30(2): 567～573

[5] [5] Xia Hui, Liu Wenqing, Zhang Yujun et al.. On-line monitoring and analysis of long open-path methane based on laser absorption spectroscopy［J］. Acta Optica Sinica, 2009, 29(6): 1454～1458

[6] [6] J. Ni, J. Chang, T. Liu et al.. A low cost multiplexed 1.331 μm spectroscopic remote methane sensor system［C］. SPIE, 2007, 6595: 65952Z

[7] [7] Shuai Zhang, Wenqing Liu, Yujun Zhang et al.. Gas leakage monitoring with scanned-wavelength direct absorption spectroscopy［J］. Chin. Opt. Lett., 2010, 8(5): 443～446

[8] [8] Ni Jiasheng, Chang Jun, Liu Tongyu et al.. Spontaneous combustion prediction in coal mine goaf based on fiber sensing of gas［J］. J. Appled Optics, 2009, 30(6): 996～1002

[9] [9] Wang Jian, Huang Wei, Gu Haitao et al.. Gas temperature measurement based on TDLAS［J］. J. Optoelectronics·Laser， 2006, 17(10): 1233～1237

[10] [10] Y. Wei, Y. Li, Y. Zhao et al.. Fiber optic methane monitor based TDLAS and its application in VAM oxidiser system［C］. SPIE, 2009, 7503: 75034N

[11] [11] T. Liu, Y. Wei, Y. Zhao et al.. Hazard monitoring in mines using fibre optic sensors［C］. SPIE, 2009, 7503: 75030H