Distributed Acoustic Sensor Using Broadband Weak FBG Array for Large Temperature Tolerance

被引:19
|
作者
Wang, Chen [1 ]
Shang, Ying [1 ]
Zhao, Wen-An [1 ]
Liu, Xiao-Hui [1 ]
Wang, Chang [1 ]
Yu, Hai-Hu [2 ]
Yang, Ming-Hong [2 ]
Peng, Gang-Ding [3 ]
机构
[1] Qilu Univ Technol, Shandong Acad Sci, Laser Inst, Jinan 250014, Shandong, Peoples R China
[2] Wuhan Univ Technol, Natl Engn Lab Fiber Opt Sensing Technol, Wuhan 430070, Hubei, Peoples R China
[3] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
基金
中国国家自然科学基金;
关键词
Distributed fiber sensing; fiber Bragg gratings; interferometry; optical time domain reflectometry; MACH-ZEHNDER INTERFEROMETER; FIBER BRAGG GRATINGS; NETWORK; SYSTEM; OTDR; STRAIN;
D O I
10.1109/JSEN.2018.2803750
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
We demonstrate distributed acoustic sensor using broadband weak fiber Bragg grating array for large temperature tolerance in an phi-optical time domain reflectometry system with a balanced Michelson interferometer. The system was tested with large difference in local temperature, 18 degrees C and 50 degrees C, simultaneously, and achieves a relatively flat frequency response from 20 Hz to 1200 Hz.
引用
收藏
页码:2796 / 2800
页数:5
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