Hydrogen sensing array based on weak fiber Bragg grating

被引：0

作者：

Bai, Wei ^{[1
]}

Yang, Minghong ^{[1
]}

Hu, Chenyuan ^{[1
]}

Dai, Jixiang ^{[1
]}

Li, Zhi ^{[1
]}

Yu, Haihu ^{[1
]}

机构：

[1] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430070, Peoples R China

来源：

24TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2015年 / 9634卷

关键词：

WFBG; hydrogen sensor; sensor array; SENSORS;

D O I：

10.1117/12.2193869

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：

Optical fiber hydrogen sensing system based on weak fiber Bragg grating (WFBG) array deposited with palladium (Pd) film is proposed and experimentally demonstrated. For multi-point measurement, three hydrogen WFBG sensors array are weld in a single optical fiber. A time-division multiplexing (TDM) interrogation system is employed to demodulate the sensing array. Sensing experiments to different hydrogen concentrations ranging from 0 to 3.6% are conducted, and the results show good agreement with standard FBG technology. Due to its strong multiplexing capability of weak FBG, the system is possible to integrate thousands of WFBG hydrogen sensors in a single optical fiber.

引用

页数：4

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