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 journalConference article

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 languageEnglish
Article number65
Pages (from-to)274-277
Number of pages4
JournalProceedings of SPIE - International Society for Optical Engineering
Volume5855
Issue numberPART I
DOIs
Publication statusPublished - 23 May 2005
Event17th international conference on Optical Fibre Sensors - Bruges, Belgium
Duration: 23 May 200527 May 2005

Fingerprint

Tunnel
tunnels
Tunnels
Fiber
Monitoring
Sensor
Gratings
fibers
Fibers
sensors
Sensors
Curvature
Strain Sensor
Displacement Measurement
Strain Gauge
Displacement measurement
curvature
gratings
Fiber Grating
Fiber Bragg gratings

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

Cite this

MacPherson, W. N., Silva-Lopez, M., Barton, J. S., Moore, A. J., Jones, J. D. C., Zhao, D., ... Chapman, D. N. (2005). Tunnel monitoring using multicore fibre displacement sensor. Proceedings of SPIE - International Society for Optical Engineering, 5855 (PART I), 274-277. [65]. https://doi.org/10.1117/12.623992
MacPherson, W. N. ; Silva-Lopez, M. ; Barton, J. S. ; Moore, A. J. ; Jones, J. D C ; Zhao, D. ; Zhang, L. ; Bennion, I. ; Metje, N. ; Rogers, C. D F ; Chapman, D. N. / Tunnel monitoring using multicore fibre displacement sensor. In: Proceedings of SPIE - International Society for Optical Engineering. 2005 ; Vol. 5855 , No. PART I. pp. 274-277.
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MacPherson, WN, Silva-Lopez, M, Barton, JS, Moore, AJ, Jones, JDC, Zhao, D, Zhang, L, Bennion, I, Metje, N, Rogers, CDF & Chapman, DN 2005, 'Tunnel monitoring using multicore fibre displacement sensor', Proceedings of SPIE - International Society for Optical Engineering, vol. 5855 , no. PART I, 65, pp. 274-277. https://doi.org/10.1117/12.623992

Tunnel monitoring using multicore fibre displacement sensor. / MacPherson, W. N.; Silva-Lopez, M.; Barton, J. S.; Moore, A. J.; Jones, J. D C; Zhao, D.; Zhang, L.; Bennion, I.; Metje, N.; Rogers, C. D F; Chapman, D. N.

In: Proceedings of SPIE - International Society for Optical Engineering, Vol. 5855 , No. PART I, 65, 23.05.2005, p. 274-277.

Research output: Contribution to journalConference article

TY - JOUR

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.

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KW - Bend sensing

KW - Fibre Bragg grating

KW - Multicore

KW - Optical fibre

KW - Structural monitoring

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MacPherson WN, Silva-Lopez M, Barton JS, Moore AJ, Jones JDC, Zhao D et al. Tunnel monitoring using multicore fibre displacement sensor. Proceedings of SPIE - International Society for Optical Engineering. 2005 May 23;5855 (PART I):274-277. 65. https://doi.org/10.1117/12.623992