Novel sensor design using photonic crystal fibres for monitoring the onset of corrosion in reinforced concrete structures
Fecha
2014Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1109/JLT.2013.2293120
Resumen
In this paper, a novel sensing technique has been designed and investigated for the direct, in situ detection of steel corrosion distributed in reinforced concrete structures. At present, structural health monitoring in reinforced concrete structures is generally focused on monitoring the corrosion risk of the reinforcing steel. It is of significant importance, however, to inform industry of both ...
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In this paper, a novel sensing technique has been designed and investigated for the direct, in situ detection of steel corrosion distributed in reinforced concrete structures. At present, structural health monitoring in reinforced concrete structures is generally focused on monitoring the corrosion risk of the reinforcing steel. It is of significant importance, however, to inform industry of both the onset of corrosion and the corrosion rate as these are key contributors to structural degradation and thus evaluating the service life of the structures. This paper aims to address the above challenges by describing a novel corrosion sensor design using birefringent photonic crystal fibres. The technique exploits fully both the birefringence of the fibres for force/pressure measurement and their very low temperature sensitivity to detect the onset of corrosion. This new type of sensor not only determines the onset of corrosion but also allows for better monitoring along the length of a reinforcement bar. [--]
Materias
Fibre loop mirror (FLM),
Optical fibre sensors (OFSs),
Photonic crystal fibre (PCF),
Pressure sensor,
Structural health monitoring (SHM)
Editor
IEEE
Publicado en
Journal of Lightwave Technology, 2014, 32(5), 891-896
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
The authors would like to thank the support from the EU COST Action TD1001: Novel and Reliable Optical Fibre Sensor Systems for Future Security and Safety Applications for this joint research undertaken. The support of the George Daniels Educational Trust is gratefully acknowledged.