LI Wen-chao, SHA Xiao-peng, LIU Zheng-jun, LI Zhi-quan, FENG Lei, MA Bo-hua. Gas concentration measurement based on fiber-circled cavity ring-down method[J]. Journal of Applied Optics, 2009, 30(5): 831-835.
Citation: LI Wen-chao, SHA Xiao-peng, LIU Zheng-jun, LI Zhi-quan, FENG Lei, MA Bo-hua. Gas concentration measurement based on fiber-circled cavity ring-down method[J]. Journal of Applied Optics, 2009, 30(5): 831-835.
shu

Gas concentration measurement based on fiber-circled cavity ring-down method

  • 1.

    Qinhuangdao College of Profession Technology ,Qinhuangdao 066100,China;

  • 2.

    School of Information, Hebei University of Technology,Tianjin 300130,China;

  • 3.

    Institute of Electric Engineering, Yanshan University, Qinhuangdao 066004,China;

  • 4.

    Academy of Equipment Command and Technology of PLA,Beijing 101416,China

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    • Abstract
  • In order to realize the trace gas concentration on-line measurement and analysis，a multi-type gas concentration on-line measurement system based on fiber-circled cavity ring-down method was designed and developed. Based on the nonlinear optical cavity ring-down technology, the experimental analysis of the gas concentration in-situ measurement with such system was performed. The gas-to-light absorption characteristics of the same gas with different concentrations changed with time and their relationship was given. The resolution of concentration measurement reaches 1ppb. The experiment proves that the system can be used to measure trace gas concentration effectively.
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    • References (1)
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