An enhanced distributed acoustic sensing system based on the interactions between microstructures
An enhanced distributed acoustic sensing system based on the interactions between microstructures
Acoustic field could be quite useful in structure health monitoring (SHM). Here we present an enhanced distributed acoustic sensing (DAS) system by implanting microstructures into the sensing fibre. Taking advantage of the interactions between nearby microstructures, the acoustic field could be reconstructed with high fidelity and signal-to-noise ratio (SNR) even at the rear end of 42.2km long sensing fibre. The experimental results have shown that the proposed sensing system has a linear intensity response of R2 = 0.9988, while its frequency response band ranges from 8Hz to 1 kHz. Purely distributed sensing along the optical fibre has been obtained even with discretely implanted microstructures for the proposed system, which offers a dependable option for acoustic field monitoring.
1-5
Zhang, X.P.
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Shan, Y.Y.
c828decc-f7e3-4885-8b53-69ce22109464
Zhang, Y.H.
23067dc8-4968-46cf-bcff-26ab79b6a25e
Reng, J.
f5f40ea0-3adf-40a2-ba9d-d2d4e5c180cd
Chen, M.M.
7123c670-4529-48c4-a9e9-f1b14d9f28c7
Zhang, Y.H.
e6355b1c-caa6-4002-b217-058ffdfa5b31
13 November 2018
Zhang, X.P.
90550e3f-4035-404c-a0f1-1b6d1eeaac43
Shan, Y.Y.
c828decc-f7e3-4885-8b53-69ce22109464
Zhang, Y.H.
23067dc8-4968-46cf-bcff-26ab79b6a25e
Reng, J.
f5f40ea0-3adf-40a2-ba9d-d2d4e5c180cd
Chen, M.M.
7123c670-4529-48c4-a9e9-f1b14d9f28c7
Zhang, Y.H.
e6355b1c-caa6-4002-b217-058ffdfa5b31
Zhang, X.P., Shan, Y.Y., Zhang, Y.H., Reng, J., Chen, M.M. and Zhang, Y.H.
(2018)
An enhanced distributed acoustic sensing system based on the interactions between microstructures.
Journal of Physics: Conference Series, 1065 (25), .
(doi:10.1088/1742-6596/1065/25/252011).
Abstract
Acoustic field could be quite useful in structure health monitoring (SHM). Here we present an enhanced distributed acoustic sensing (DAS) system by implanting microstructures into the sensing fibre. Taking advantage of the interactions between nearby microstructures, the acoustic field could be reconstructed with high fidelity and signal-to-noise ratio (SNR) even at the rear end of 42.2km long sensing fibre. The experimental results have shown that the proposed sensing system has a linear intensity response of R2 = 0.9988, while its frequency response band ranges from 8Hz to 1 kHz. Purely distributed sensing along the optical fibre has been obtained even with discretely implanted microstructures for the proposed system, which offers a dependable option for acoustic field monitoring.
Text
Zhang 2018 J. Phys. 3A Conf. Ser. 1065 252011
- Version of Record
More information
e-pub ahead of print date: 12 November 2018
Published date: 13 November 2018
Additional Information:
Mengmeng Chen was a visitor in the Optoelectronics Research Centre in 2018.
Identifiers
Local EPrints ID: 426769
URI: http://eprints.soton.ac.uk/id/eprint/426769
ISSN: 1742-6588
PURE UUID: e0133a10-cdc2-4639-b594-430709763d86
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Date deposited: 12 Dec 2018 17:30
Last modified: 15 Mar 2024 23:20
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Contributors
Author:
X.P. Zhang
Author:
Y.Y. Shan
Author:
Y.H. Zhang
Author:
J. Reng
Author:
M.M. Chen
Author:
Y.H. Zhang
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