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Proceedings Paper

Metal-packaged fibre Bragg grating strain sensors for surface-mounting onto spalled concrete wind turbine foundations
Author(s): M. Perry; G. Fusiek; I. McKeeman; P. Niewczas; M. Saafi
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Paper Abstract

In this work, we demonstrate preliminary results for a hermetically sealed, metal-packaged fibre Bragg grating strain sensor for monitoring existing concrete wind turbine foundations. As the sensor is bolted to the sub-surface of the concrete, it is suitable for mounting onto uneven, wet and degraded surfaces, which may be found in buried foundations. The sensor was able to provide reliable measurements of concrete beam strain during cyclic three- and four- point bend tests. The strain sensitivity of the prototype sensor is currently 10 % of that of commercial, epoxied fibre strain sensors.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963466 (28 September 2015); doi: 10.1117/12.2190188
Show Author Affiliations
M. Perry, Univ. of Strathclyde (United Kingdom)
G. Fusiek, Univ. of Strathclyde (United Kingdom)
I. McKeeman, Univ. of Strathclyde (United Kingdom)
P. Niewczas, Univ. of Strathclyde (United Kingdom)
M. Saafi, Univ. of Lancaster (United Kingdom)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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