Multi-component strain development in superconducting magnet coils monitored using fibre Bragg grating sensors fabricated in highly linearly birefringent fibre
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Chehura, Edmon
Buggy, Stephen J.
James, Stephen W.
Johnstone, Adam
Lakrimi, M’hamed
Domptail, Fred
Twin, Andrew
Tatam, Ralph P.
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0964-1726
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Edmon Chehura, Stephen W James, Adam Johnstone, M’hamed Lakrimi, Fred Domptail, Andrew Twin and Ralph P. Tatam. Multi-component strain development in superconducting magnet coils monitored using fibre Bragg grating sensors fabricated in highly linearly birefringent fibre. Materials and Structures. Vol. 20, 125004.
Abstract
The commissioning of superconducting magnet coils was monitored using embedded optical fibre Bragg grating sensors (FBG) fabricated in highly linearly birefringent (HiBi) fibre. The HiBi FBG sensors monitored the internal strain developed in the coils during the energization of the coils. The development of multiple components of strain in the coils when the magnet was energized and quenched was monitored, revealing phenomena that it had not been previously possible to measure using other sensor technologies.
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This is an author-created, un-copyedited version of an article accepted for publication in Materials and Structures. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at DOI:10.1088/0964-1726/20/12/125004