2 June 2014 Deformation monitoring in prestressing tendons using fibre Bragg gratings encapsulated in metallic packages
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157A6 (2014) https://doi.org/10.1117/12.2059649
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
An investigation into the capability of deformation monitoring using fibre Bragg gratings encapsulated in metallic packages is presented in the paper. The proposed approach relies on a grating inscription into a metal coated fibre and brazing the fibre into a metal capillary using induction heating. A metal rod instrumented with encapsulated FBG strain and temperature sensors is placed in an electromechanical tester and stressed up 80 % of its ultimate tensile strength. It is demonstrated through a 60 h experiment that the sensors are capable of real-time deformation monitoring.
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Grzegorz Fusiek, Grzegorz Fusiek, Marcus Perry, Marcus Perry, Pawel Niewczas, Pawel Niewczas, Michael Johnston, Michael Johnston, } "Deformation monitoring in prestressing tendons using fibre Bragg gratings encapsulated in metallic packages", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A6 (2 June 2014); doi: 10.1117/12.2059649; https://doi.org/10.1117/12.2059649
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