Early leak detection in wastewater pipelines using fibre Bragg grating sensors
Fabian, M., Coote, J. M., Scott, R. , Sun, T., Grattan, K. T., Bustamante, H., Hill, T., McCulloch, J., Tait, S. & Horoshenkov, K. (2025). Early leak detection in wastewater pipelines using fibre Bragg grating sensors. In: Lopez-Amo Sainz, M., Santos, J. L. & Sun, T. (Eds.), Proceedings of SPIE. 29th International Conference on Optical Fiber Sensors, 25-30 May 2025, Porto, Portugal. doi: 10.1117/12.3062907
Abstract
We report on improvements in the design and data processing of a ruggedised, highly sensitive fibre-optic pressure sensor for use in pumped sewer mains. Leak detection and localisation tests were carried out on a plant scale test rig using mains water for a range of leak sizes. The leak-induced pressure drop resolution achieved is better than 100Pa (1mbar) which corresponds to a leak size of approximately 2mm (in a pipe of 100mm in diameter and a flow rate of 16 litres per second).
| Publication Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Copyright 2025 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. |
| Publisher Keywords: | optical fibre sensors, high sensitivity pressure sensor, leak detection, pressurised (non-gravity) pipeline, water industry |
| Subjects: | T Technology > TH Building construction T Technology > TJ Mechanical engineering and machinery |
| Departments: | School of Science & Technology School of Science & Technology > Engineering |
| SWORD Depositor: |
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