30 January 2012 Fiber optic sensor for detection of ground vibrations
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Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835109 (2012) https://doi.org/10.1117/12.914034
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia
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.
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Tsair-Chun Liang, Tsair-Chun Liang, Yung-Li Lin, Yung-Li Lin, "Fiber optic sensor for detection of ground vibrations", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835109 (30 January 2012); doi: 10.1117/12.914034; https://doi.org/10.1117/12.914034
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