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Proceedings Paper

Range-resolved single-sideband optical fibre interferometry for quasi-distributed dynamic strain sensing
Author(s): Thomas Kissinger; Thomas O. H. Charrett; Ralph P. Tatam
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Paper Abstract

A novel optical signal processing scheme for fibre sensors is proposed, which combines interferometric phase measurements with range multiplexing. The scheme is based on single-sideband signal processing and uses continuous-wave pseudo-random range encoding. The potential of the technique for cost-effective dynamic quasi-distributed strain sensing is explored by applying it to an array of fibre segments. In its current implementation dynamic strains in segments of 3.4 m gauge lengths can be measured with a resolution well below microstrains at a bandwidth of 100 kHz.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84218I (7 November 2012); doi: 10.1117/12.974933
Show Author Affiliations
Thomas Kissinger, Cranfield Univ. (United Kingdom)
Thomas O. H. Charrett, Cranfield Univ. (United Kingdom)
Ralph P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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