Burhanuddin, W. A. F. W. and Ahmad, Harith and Sa'Ad, M. S. M. and Alias, M. A. and Ismail, M. F. (2025) Fiber bragg grating (FBG)-based pore pressure sensor utilizing bellows system. IEEE Sensors Journal, 25 (3). pp. 4706-4714. ISSN 1530-437X, DOI https://doi.org/10.1109/JSEN.2024.3521011.
Full text not available from this repository.Abstract
This study presents the design, fabrication, and performance evaluation of an optical fiber Bragg grating (FBG)-based pore pressure sensor for geotechnical borehole applications. The sensor comprises a cylindrical body, 3-D, printed from polylactic acid (PLA) material, with dimensions of 40 mm in diameter and 155 mm in length. The transducer holding the FBG utilizes a square bellows design and was 3-D printed using thermoplastic polyurethane (TPU) material, taking advantage of its good flexibility. This transducer was positioned inside a cylindrical housing to allow pore pressure measurement to take place effectively. Two FBGs, denoted FBG P and FBG T, were used to measure pore pressure and temperature, respectively. The experimental results demonstrate a pressure sensitivity of 1.224 pm/kPa for FBG P with a linearity of 99.41%. Besides that, the results also demonstrate FBG T's effectiveness in giving temperature compensation to FBG P during pore pressure measurement. This innovative sensor design offers a compact and versatile solution for pore pressure measurement in geotechnical applications, combining the benefits of FBG technology with 3-D printing capabilities.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia, Universiti Malaya [Grant No: BKS002-2023; BKS002-2024; RK021-2019] |
| Uncontrolled Keywords: | 3-D printing technology; Bellows system; Fiber Bragg gratings (FBGs); Optical fiber sensor; Pore pressure sensor; 3-D printing technology; Bellows system; Fiber Bragg |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 03 Oct 2025 07:24 |
| Last Modified: | 03 Oct 2025 07:24 |
| URI: | http://eprints.um.edu.my/id/eprint/47925 |
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