Structural monitoring using optically-rugged fibre-optic methods: Group delay measurements and wavelength interrogation of gratings
Structural monitoring using optically-rugged fibre-optic methods: Group delay measurements and wavelength interrogation of gratings
The paper describes progress with two multiplexed methods which have been designed for strain sensing in optical fibres. Both methods depend, effectively, on monitoring changes in optical propagation velocity. They are therefore expected to be less affected by fibre bending and lateral pressure than systems based on polarimetry. Unlike complex interferometric systems, they do not require to reference fringe positions (the latter could have difficulty in fringe tracking under conditions of severe mechanical shock or vibration.
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Xu, M.G.
9cd111ff-5235-42c8-8a89-47899e7e8a26
28 April 1995
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Xu, M.G.
9cd111ff-5235-42c8-8a89-47899e7e8a26
Dakin, J.P., Geiger, H. and Xu, M.G.
(1995)
Structural monitoring using optically-rugged fibre-optic methods: Group delay measurements and wavelength interrogation of gratings.
IEE Colloquium on Optical Techniques for Structural Monitoring.
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Abstract
The paper describes progress with two multiplexed methods which have been designed for strain sensing in optical fibres. Both methods depend, effectively, on monitoring changes in optical propagation velocity. They are therefore expected to be less affected by fibre bending and lateral pressure than systems based on polarimetry. Unlike complex interferometric systems, they do not require to reference fringe positions (the latter could have difficulty in fringe tracking under conditions of severe mechanical shock or vibration.
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Published date: 28 April 1995
Venue - Dates:
IEE Colloquium on Optical Techniques for Structural Monitoring, 1995-04-28
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Local EPrints ID: 362736
URI: http://eprints.soton.ac.uk/id/eprint/362736
PURE UUID: 3178f02e-8c55-40a7-a78b-19b40a641cd1
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Date deposited: 07 Mar 2014 10:14
Last modified: 14 Mar 2024 16:12
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Contributors
Author:
J.P. Dakin
Author:
H. Geiger
Author:
M.G. Xu
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