Microstructured optical fiber Bragg grating-based strain and temperature sensing in the concrete buffer of the Belgian supercontainer concept

Thomas Geernaert; Sanne Sulejmani; Camille Sonnenfeld; Geert Luyckx; Karima Chah; Lou Areias; Pawel Mergo; Waclaw Urbanczyk; Philippe Van Marcke; Erik Coppens; Hugo Thienpont; Francis Berghmans

doi:10.1117/12.2059369

2 June 2014 Microstructured optical fiber Bragg grating-based strain and temperature sensing in the concrete buffer of the Belgian supercontainer concept

Thomas Geernaert, Sanne Sulejmani, Camille Sonnenfeld, Geert Luyckx, Karima Chah, Lou Areias, Pawel Mergo, Waclaw Urbanczyk, Philippe Van Marcke, Erik Coppens, Hugo Thienpont, Francis Berghmans

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 915777 (2014) https://doi.org/10.1117/12.2059369
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We present the use of microstructured optical fiber Bragg grating-based sensors for strain and temperature monitoring inside the concrete buffer of the Belgian supercontainer concept, demonstrated in a half-scale test in 2013. This test incorporated several optical fiber sensors inside the concrete buffer for production and condition monitoring. The optical fiber sensors presented here consist of small carbon-reinforced composite plates in which highly birefringent Butterfly microstructured optical fibers, equipped with fiber Bragg gratings, were embedded. The double reflection spectrum of these MOFGBs allows to simultaneously monitor strain and temperature, as confirmed by comparison with data obtained from thermocouples and vibrating-wire sensors installed near the MOFBGs.

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Thomas Geernaert, Sanne Sulejmani, Camille Sonnenfeld, Geert Luyckx, Karima Chah, Lou Areias, Pawel Mergo, Waclaw Urbanczyk, Philippe Van Marcke, Erik Coppens, Hugo Thienpont, and Francis Berghmans "Microstructured optical fiber Bragg grating-based strain and temperature sensing in the concrete buffer of the Belgian supercontainer concept", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915777 (2 June 2014); https://doi.org/10.1117/12.2059369

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