Research on the Controlling Technique of DFBLD in the Spectrum Absorption Optical Fiber Gas Detecting System
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  • 作者:Shutao Wang (1) wangshutao@ysu.edu.cn
    Pengwei Zhang (1) zpw1004@163.com
    Xiaoqing Shao (1) sxqxf@163.com
  • 关键词:Optical fiber gas sensor &#8211 ; DFBLD &#8211 ; Constant current driving &#8211 ; Constant temperature controlling
  • 刊名:Lecture Notes in Computer Science
  • 出版年:2012
  • 出版时间:2012
  • 年:2012
  • 卷:7473
  • 期:1
  • 页码:715-721
  • 全文大小:233.3 KB
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  • 作者单位:1. Key Laboratory of Measurement Technology and Instrumentation of Hebei Province, Yanshan University, Qinhuangdao, 066004 China
  • ISSN:1611-3349
文摘
Spectrum absorption optical fiber gas sensor has characteristics such as high measuring resolution, high precision and good gas differential ability when it is applied on gas measurement. As ideal illuminant and key component, the research of DFBLD seems especially important. Constant current driving and constant temperature controlling techniques are adopted on DFBLD to make the central wavelength of it accurately point at detected gas absorption. Theory analysis and experiment results indicate that the optical fiber gas sensor based on DFBLD has specified detecting precision and resolution.

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