Share Email Print
cover

Proceedings Paper

Distributed acoustic sensing system using an identical weak fiber Bragg grating array
Author(s): Sheng Liu; Xinying Han; Hongqiao Wen
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We propose and experimentally demonstrate a distributed acoustic sensing system using an identical weak fiber Bragg grating array. Phase, frequency and location information of vibration can be demodulated by using a path-match interferometry method. 3×3 coupler demodulation technique is employed to eliminate signal fading in interferometer. Experiments on detecting acoustic wave generated by PZT show that the system is capable of measuring vibrations of up to 1000 Hz over 1.6 km with 2.5m spatial resolution.

Paper Details

Date Published: 19 October 2016
PDF: 6 pages
Proc. SPIE 10155, Optical Measurement Technology and Instrumentation, 101550O (19 October 2016); doi: 10.1117/12.2244770
Show Author Affiliations
Sheng Liu, Wuhan Univ. of Technology (China)
Xinying Han, Wuhan Univ. of Technology (China)
Hongqiao Wen, Wuhan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 10155:
Optical Measurement Technology and Instrumentation
Sen Han; JiuBin Tan, Editor(s)

© SPIE. Terms of Use
Back to Top