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Proceedings Paper • new

A buried intrusion monitoring system based on high sensitivity optical fiber geophone
Author(s): Shujuan Li; Faxiang Zhang; Xiaolei Zhang; Zhihui Sun; Li Min; Chang Wang
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Paper Abstract

A new intrusion monitoring system is designed, based on a high sensitivity fiber grating geophone and PGC interferometric demodulation. A kind of high sensitive fiber Bragg grating geophone is designed. The sensitivity of the geophone is analyzed by finite element software. The PGC interferometric demodulation algorithm is used to detect the wavelength of the geophone, to reduce the noise of the system and improve the signal-to-noise ratio. Invasive monitoring test was carried out, the personnel and vehicles invading signal were collected and analyzed. Test results show that the intrusion monitoring system based on fiber geophone can effectively identify remote intrusion, and has low false alarm rate.

Paper Details

Date Published: 25 October 2017
PDF: 8 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 1046410 (25 October 2017); doi: 10.1117/12.2285005
Show Author Affiliations
Shujuan Li, Shandong Key Lab. of Optical Fiber Sensing Technology (China)
Laser Research Institute (China)
Faxiang Zhang, Shandong Key Lab. of Optical Fiber Sensing Technology (China)
Laser Research Institute (China)
Xiaolei Zhang, Shandong Key Lab. of Optical Fiber Sensing Technology (China)
Laser Research Institute (China)
Zhihui Sun, Shandong Key Lab. of Optical Fiber Sensing Technology (China)
Laser Research Institute (China)
Li Min, Shandong Key Lab. of Optical Fiber Sensing Technology (China)
Laser Research Institute (China)
Chang Wang, Shandong Key Lab. of Optical Fiber Sensing Technology (China)
Laser Research Institute (China)


Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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