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Proceedings Paper

Fiber optic sensor for detection of ground vibrations
Author(s): Tsair-Chun Liang; Yung-Li Lin
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Paper Abstract

The paper describes a new fiber optic sensor based on the Mach-Zehnder and Sagnac hybrid interferometer to measure the ground vibrations is investigated. The frequency characteristic of vibration signal is analyzed via fast Fourier transform (FFT) and Gabor transform. It provides highly sensitive for low frequency measurement. The fiber optic vibration sensing system presented in this research is appropriate to utilize for sensing ground vibration between 10 ~ 200Hz frequency range.

Paper Details

Date Published: 30 January 2012
PDF: 7 pages
Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835109 (30 January 2012); doi: 10.1117/12.914034
Show Author Affiliations
Tsair-Chun Liang, National Kaohsiung First Univ. of Science and Technology (Taiwan)
Yung-Li Lin, National Kaohsiung First Univ. of Science and Technology (Taiwan)

Published in SPIE Proceedings Vol. 8351:
Third Asia Pacific Optical Sensors Conference
John Canning; Gangding Peng, Editor(s)

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