Fiber methane gas sensor and its application in methane outburst prediction in coal mine

被引：0
|
作者：
Ni, Jiasheng [1 ]
Chang, Jun [2 ]
Liu, Tongyu [1 ]
Li, Yanfang [1 ]
Zhao, Yanjie [1 ]
Wang, Qian [1 ]
机构：
[1] Shandong Acad Sci, Laser Inst, Jinan 250014, Peoples R China
[2] Shandong Univ, Sch Informat Sci & Technol, Jinan 250100, Peoples R China
来源：
APOS: 2008 1ST ASIA-PACIFIC OPTICAL FIBER SENSORS CONFERENCE | 2008年
关键词：
Methane outburst; Prediction; Optical absorption; wavelength scan;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Fiber optic methane gas detecting system based on distributed feedback (DFB) laser wavelength scanning technique is demonstrated. Wavelength scan of methane absorption peak at 1665.9nm is realized by saw tooth modulation of current which is injected to DFB laser. A reference methane gas cell is used to rind the methane absorption peak around 1666um, and normalization is used to reduce the outside affection such as power drift, fiber loss. Concentration is got by arithmetic processing absorption coefficient of the methane gas. In-situ test is carried out in coalmine and long time precision of 0.05% is achieved. Some spot data of coal mine is introduced. By the system, methane outburst can be measured.
引用
收藏
页码：6 / +
页数：2
相关论文
共 50 条
  • [1] Fiber Methane Gas Sensor and Its Application in Methane Outburst Prediction in Coal Mine
    J.-S. Ni
    [J]. Journal of Electronic Science and Technology, 2008, 6 (04) : 373 - 376
  • [2] Fiber Methane Gas Sensor and Its Application in Methane Outburst Prediction in Coal Mine
    JS Ni TY Liu YF Li YJ Zhao and Q Wang are with Laser Institute Shandong Academy of Science Jinan China JS Ni and J Chang are with School of Information Science and Technology Shandong University Jinan China
    [J]. Journal of Electronic Science and Technology of China, 2008, 6 (04) : 373 - 376
  • [3] Fiber Laser methane sensor and its application in coal mine safety
    Li Yan-fang
    Wei Yu-bin
    Shang Ying
    Zhao Yan-jie
    Zhang Ting-ting
    Wang Chang
    Liu Tong-yu
    [J]. ISMSSE 2011, 2011, 26
  • [4] Mine Laser Methane Sensor and Its Application Development
    Wei Yubin
    Hu Jie
    Zhang Tingting
    Jin Guangxian
    Liu Tongyu
    [J]. 2017 2ND INTERNATIONAL CONFERENCE OF FIBRE-OPTIC AND PHOTONIC SENSORS FOR INDUSTRIAL AND SAFETY APPLICATIONS (OFSIS 2017), 2017, : 56 - 62
  • [5] Mine coal and gas outburst prediction area
    Li, Qiang
    [J]. MECHATRONICS AND APPLIED MECHANICS, PTS 1 AND 2, 2012, 157-158 : 484 - 488
  • [6] Desorption characterization of methane and carbon dioxide in coal and its influence on outburst prediction
    Liang, Yunpei
    Wang, Fakai
    Luo, Yongjiang
    Hu, Qianting
    [J]. ADSORPTION SCIENCE & TECHNOLOGY, 2018, 36 (7-8) : 1484 - 1495
  • [7] Moisture Content on Methane Desorption Characteristics in Coal and Its Effect on Outburst Prediction
    Li, Peng
    Cao, Yaolin
    Li, Xuelong
    Wang, Fakai
    Sun, Zhongguang
    Huang, Qinke
    Chen, Deyou
    [J]. ADVANCES IN CIVIL ENGINEERING, 2021, 2021
  • [8] Preventing Coal and Gas Outburst Using Methane Hydration
    吴强
    何学秋
    [J]. International Journal of Mining Science and Technology, 2003, (01) : 7 - 10
  • [9] Prediction Technology of Coal and Gas Outburst in Xuandong Coal Mine
    Zhao, Shengshan
    Pan, Weidong
    Wang, Xin
    Liu, Jiadun
    [J]. ADVANCES IN CIVIL ENGINEERING, PTS 1-6, 2011, 255-260 : 3731 - 3734
  • [10] The influence of coal adsorbing methane and carbon dioxide on gas outburst
    Cheng, Dezhu
    Du, Ailing
    Du, Aiqin
    [J]. MODERN TECHNOLOGIES IN MATERIALS, MECHANICS AND INTELLIGENT SYSTEMS, 2014, 1049 : 101 - 104
12345