Radiation impact on strain transfer efficiency of bonded FBGs

Chloé Landreau; Jeoffray Vidalot; Adriana Morana; Nicolas Ponthus; Thomas Le Gall; Sylvain Girard; Jacques Charvin; Emmanuel Marin

doi:10.1117/12.2680301

23 May 2023 Radiation impact on strain transfer efficiency of bonded FBGs

Chloé Landreau, Jeoffray Vidalot, Adriana Morana, Nicolas Ponthus, Thomas Le Gall, Sylvain Girard, Jacques Charvin, Emmanuel Marin

Author Affiliations +

Proceedings Volume 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023); 126430E (2023) https://doi.org/10.1117/12.2680301
Event: European Workshop on Optical Fibre Sensors (EWOFS 2023), 2023, Mons, Belgium

Abstract

Radiation impact on the strain transfer for a bonded fiber Bragg grating (FBG) has been investigated. The main goal of this preliminary study is to evaluate which adhesive and which fiber are the most appropriate to design a very sensitive strain sensor able to operate in nuclear environment. We performed static and dynamic experiments on different kinds of adhesives and different optical fibers, before and after a 1 MGy(SiO₂) X-ray irradiation. The results reveal that the FBG strain sensors can be as much sensitive as classic strain-gauges and that the radiation effects on adhesives can have a positive impact on the strain transfer efficiency.

Citation Download Citation

Chloé Landreau, Jeoffray Vidalot, Adriana Morana, Nicolas Ponthus, Thomas Le Gall, Sylvain Girard, Jacques Charvin, and Emmanuel Marin "Radiation impact on strain transfer efficiency of bonded FBGs", Proc. SPIE 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023), 126430E (23 May 2023); https://doi.org/10.1117/12.2680301

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