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.
|Journal||Proceedings of SPIE|
|Publication status||Published - 2 Jun 2014|
|Event||23rd International Conference on Optical Fiber Sensors - Santander, Spain|
Duration: 3 Jun 2014 → 6 Jun 2014
- deformation monitoring
- fibre Bragg gratings
- temperature sensors