Tunnel monitoring using multicore fibre displacement sensor

W. N. MacPherson; M. Silva-Lopez; J. S. Barton; A. J. Moore; J. D C Jones; D. Zhao; L. Zhang; I. Bennion; N. Metje; C. D F Rogers; D. N. Chapman

doi:10.1117/12.623992

Tunnel monitoring using multicore fibre displacement sensor

W. N. MacPherson^*, M. Silva-Lopez, J. S. Barton, A. J. Moore, J. D C Jones, D. Zhao, L. Zhang, I. Bennion, N. Metje, C. D F Rogers, D. N. Chapman

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

We describe the first application of multiplexed fibre Bragg grating strain sensors in a multicore fibre. Sets of gratings, acting as strain gauges, are co-located in the multicore fibre such that they enable the curvature to be measured. Multiple sets of these gratings allow the curvature to be measured at several points along the fibre. This sensor is configured to monitor displacement of concrete tunnel sections, and was demonstrated capable of displacement measurement with a resolution of ±0.1 mm over a range of several millimeters.

Original language	English
Article number	65
Pages (from-to)	274-277
Number of pages	4
Journal	Proceedings of SPIE - International Society for Optical Engineering
Volume	5855
Issue number	PART I
DOIs	https://doi.org/10.1117/12.623992
Publication status	Published - 23 May 2005
Event	17th international conference on Optical Fibre Sensors - Bruges, Belgium Duration: 23 May 2005 → 27 May 2005

Bibliographical note

Copyright 2005 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

Bend sensing
Fibre Bragg grating
Multicore
Optical fibre
Structural monitoring

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10.1117/12.623992

Tunnel monitoring using multicore fiber displacement sensor
Copyright 2005 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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title = "Tunnel monitoring using multicore fibre displacement sensor",

abstract = "We describe the first application of multiplexed fibre Bragg grating strain sensors in a multicore fibre. Sets of gratings, acting as strain gauges, are co-located in the multicore fibre such that they enable the curvature to be measured. Multiple sets of these gratings allow the curvature to be measured at several points along the fibre. This sensor is configured to monitor displacement of concrete tunnel sections, and was demonstrated capable of displacement measurement with a resolution of ±0.1 mm over a range of several millimeters.",

keywords = "Bend sensing, Fibre Bragg grating, Multicore, Optical fibre, Structural monitoring",

author = "MacPherson, {W. N.} and M. Silva-Lopez and Barton, {J. S.} and Moore, {A. J.} and Jones, {J. D C} and D. Zhao and L. Zhang and I. Bennion and N. Metje and Rogers, {C. D F} and Chapman, {D. N.}",

note = "Copyright 2005 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. ; 17th international conference on Optical Fibre Sensors, OFS-2005 ; Conference date: 23-05-2005 Through 27-05-2005",

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doi = "10.1117/12.623992",

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T1 - Tunnel monitoring using multicore fibre displacement sensor

AU - MacPherson, W. N.

AU - Silva-Lopez, M.

AU - Barton, J. S.

AU - Moore, A. J.

AU - Jones, J. D C

AU - Zhao, D.

AU - Zhang, L.

AU - Bennion, I.

AU - Metje, N.

AU - Rogers, C. D F

AU - Chapman, D. N.

N1 - Copyright 2005 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

PY - 2005/5/23

Y1 - 2005/5/23

N2 - We describe the first application of multiplexed fibre Bragg grating strain sensors in a multicore fibre. Sets of gratings, acting as strain gauges, are co-located in the multicore fibre such that they enable the curvature to be measured. Multiple sets of these gratings allow the curvature to be measured at several points along the fibre. This sensor is configured to monitor displacement of concrete tunnel sections, and was demonstrated capable of displacement measurement with a resolution of ±0.1 mm over a range of several millimeters.

AB - We describe the first application of multiplexed fibre Bragg grating strain sensors in a multicore fibre. Sets of gratings, acting as strain gauges, are co-located in the multicore fibre such that they enable the curvature to be measured. Multiple sets of these gratings allow the curvature to be measured at several points along the fibre. This sensor is configured to monitor displacement of concrete tunnel sections, and was demonstrated capable of displacement measurement with a resolution of ±0.1 mm over a range of several millimeters.

KW - Bend sensing

KW - Fibre Bragg grating

KW - Multicore

KW - Optical fibre

KW - Structural monitoring

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UR - https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5855/1/Tunnel-monitoring-using-multicore-fiber-displacement-sensor/10.1117/12.623992.full

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DO - 10.1117/12.623992

M3 - Conference article

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SN - 0277-786X

VL - 5855

SP - 274

EP - 277

JO - Proceedings of SPIE - International Society for Optical Engineering

JF - Proceedings of SPIE - International Society for Optical Engineering

IS - PART I

M1 - 65

T2 - 17th international conference on Optical Fibre Sensors

Y2 - 23 May 2005 through 27 May 2005

ER -

Tunnel monitoring using multicore fibre displacement sensor

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Keywords

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