2 June 2014 Distributed optical fibre audible frequency sensor
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91573T (2014) https://doi.org/10.1117/12.2058484
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
A distributed optical fibre sensor is demonstrated which is capable of quantifying acoustic and dynamic strain disturbances along a 1km sensing fibre. A phase-OTDR technique is used to detect the dynamic perturbations using the phase-difference between the backscattered light from two separate sections of the sensing fibre. The demonstrated sensor detects multiple dynamic perturbations simultaneously within a frequency range of 200Hz to 5000Hz with a frequency resolution of 10Hz and a spatial resolution of 1m.
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Ali Masoudi, Mohammad Belal, Trevor P. Newson, "Distributed optical fibre audible frequency sensor ", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91573T (2 June 2014); doi: 10.1117/12.2058484; https://doi.org/10.1117/12.2058484
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