An intrinsic graded-index multimode optical fibre strain-gauge
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作者:
Ribeiro, RM
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Univ Fed Rio de Janeiro, Lab Instrumentacao & Foton COPPE, BR-21945970 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Lab Instrumentacao & Foton COPPE, BR-21945970 Rio De Janeiro, RJ, Brazil
Ribeiro, RM
[1
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Werneck, MM
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机构:Univ Fed Rio de Janeiro, Lab Instrumentacao & Foton COPPE, BR-21945970 Rio De Janeiro, RJ, Brazil
Werneck, MM
机构:
[1] Univ Fed Rio de Janeiro, Lab Instrumentacao & Foton COPPE, BR-21945970 Rio De Janeiro, RJ, Brazil
[2] Univ Estado Rio De Janeiro, Dept Engn Eletron, Rio De Janeiro, Brazil
We report on a novel strain-gauge based on a graded-index (GI) multimode (MM) optical fibre fed through a fusion spliced singlemode (SM) fibre. The lowest order spatial mode is launched and propagates twice through the MM sensing fibre. Mismatch between the sinusoidal trajectories of the propagating modes relative to GI MM fibre pitch occurs due to the strain and is on-line converted to intensity modulation in the MM/SM interface. Results have shown linear response up to 4250 micro-strains (mue) range and resolution of 9 [Le. (C) 2003 Published by Elsevier B.V.
机构:
Natl Astron Res Inst Thailand, 260 Moo 4 T Donkaew A Maerim, Chiang Mai 50180, ThailandNatl Astron Res Inst Thailand, 260 Moo 4 T Donkaew A Maerim, Chiang Mai 50180, Thailand
Choochalerm, Piyamas
Martin, William E.
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Univ Hertfordshire, Ctr Astrophys Res, Coll Lane, Hatfield AL10 9AB, Herts, EnglandNatl Astron Res Inst Thailand, 260 Moo 4 T Donkaew A Maerim, Chiang Mai 50180, Thailand
Martin, William E.
Jones, Hugh R.
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Univ Hertfordshire, Ctr Astrophys Res, Coll Lane, Hatfield AL10 9AB, Herts, EnglandNatl Astron Res Inst Thailand, 260 Moo 4 T Donkaew A Maerim, Chiang Mai 50180, Thailand
Jones, Hugh R.
Usher, Sarah
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Thorlabs Vytran Europe, 2 Kew Court, Exeter EX2 5AZ, Devon, EnglandNatl Astron Res Inst Thailand, 260 Moo 4 T Donkaew A Maerim, Chiang Mai 50180, Thailand
Usher, Sarah
PHOTONIC FIBER AND CRYSTAL DEVICES: ADVANCES IN MATERIALS AND INNOVATIONS IN DEVICE APPLICATIONS XVIII,
2024,
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