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Proceedings Paper

Distributed section-localization of an impact in a composite cylinder using the phase-sensitive optical time domain reflectometer
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Paper Abstract

We demonstrate a distributed localization of an impact source in the composite cylinder using a home-made phase sensitive optical time domain reflectometer (Φ-OTDR). The system shows the advantages of simple configuration using semiconductor optical amplifier to improve the spectral response of the pump pulses, high spatial resolution and high signal-to-noise ratio (SNR). With a spatial resolution of 10 m, the SNR could be obtained as high as 6.5 dB. A composite cylinder is longitudinally divided in multiple sections of equal lengths by bending the sensing fibers around it at different locations, and the section of a source impact is localized using the time-delay of the signal detected by the sensing fibers.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239F (23 April 2017); doi: 10.1117/12.2267568
Show Author Affiliations
Khurram Naeem, Korea Research Institute of Standards and Science (Korea, Republic of)
Yong-seok Kwon, Korea Research Institute of Standards and Science (Korea, Republic of)
Chungnam National Univ. (Korea, Republic of)
Il-Bum Kwon, Korea Research Institute of Standards and Science (Korea, Republic of)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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