Highly Sensitive Fiber Bragg Grating Geophone for Low-Frequency Seismic Detection

Bhatti, Hamza Siddique and Abdullah, Muhammad Aizzuddin and Hadeed, Muarij and Epin, Vorathin and Mohamad, Hisham and Lim, Kok-Sing (2025) Highly Sensitive Fiber Bragg Grating Geophone for Low-Frequency Seismic Detection. IEEE Transactions on Instrumentation and Measurement, 74. ISSN 00189456

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Abstract

A highly sensitive fiber Bragg grating (FBG) geophone with temperature insensitivity has been developed for low-frequency seismic detection. This geophone utilizes a rubber-based diaphragm combined with a differential FBG technique to enhance vibrational sensitivity and eliminate temperature effects. This innovative method achieves a high vibrational sensitivity of 169.71 pm/g across a frequency range of 1–36 Hz, while a low temperature sensitivity of 1.21 pm/°C is obtained over the range of 10 ◦C–40 ◦C. Frequency spectrum comparisons demonstrate that the FBG geophone performs comparably to conventional electrical geophones. © 1963-2012 IEEE.

Item Type: Article
Impact Factor: Cited by: 0
Uncontrolled Keywords: Power transmission; Public works; Seismic response; Signal processing; Fiber Bragg; Fiber bragg grating; Fiber bragg grating accelerometer; Fiber bragg grating geophone; Innovative method; Lower frequencies; Seismic detection; Seismic vibrations; Temperature insensitivity; Fiber Bragg gratings
Depositing User: Mr Ahmad Suhairi Mohamed Lazim
Date Deposited: 08 Jul 2025 16:22
Last Modified: 08 Jul 2025 16:22
URI: http://scholars.utp.edu.my/id/eprint/38897

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