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Proceedings Paper

Multicomponent strain development in superconducting magnet coils using optical fibre grating sensors fabricated in highly linearly birefringent fibre
Author(s): Edmon Chehura; Stephen W. James; Andrew Twin; Fred Domptail; R. P. Tatam
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Paper Abstract

The manufacturing and commissioning of superconducting magnet coils was monitored using embedded optical fibre Bragg grating sensors (FBG) fabricated in highly linearly birefringent (HiBi) fibre. Strain developed in the coils was monitored from the resin impregnation and curing process, through cool down of the magnet in a helium cryostat from room temperature to 4 K, to energising the coils. The development of multiple components of strain in the coils when the magnet quenched was monitored, revealing phenomena that it had not been previously possible to measure using other sensor technologies.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75035J (5 October 2009); doi: 10.1117/12.835727
Show Author Affiliations
Edmon Chehura, Cranfield Univ. (United Kingdom)
Stephen W. James, Cranfield Univ. (United Kingdom)
Andrew Twin, Oxford Instruments NanoScience (United Kingdom)
Fred Domptail, Oxford Instruments NanoScience (United Kingdom)
R. P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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