Fibre optic sensor protection system and its practical for structural integrity monitoring of concrete structures

J. S. Leng; R. A. Barnes; A. Hameed; D. Winter; J. Tetlow; G. C. Mays; G. F. Fernando

doi:10.1117/12.598708

Fibre optic sensor protection system and its practical for structural integrity monitoring of concrete structures

J. S. Leng^*
, R. A. Barnes
, A. Hameed
, D. Winter
, J. Tetlow
, G. C. Mays
, G. F. Fernando

^*Corresponding author for this work

School of Astronautics

Cranfield University

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

2 Scopus citations

Abstract

This paper is concerned with the design concepts, modelling and implementation of various fibre optic sensor protection systems for development in concrete structures. The design concepts of fibre optic sensor protection system and on-site requirements for surface-mounted and embedded optical fibre sensor in concrete structures have been addressed. The aspects of finite element (FE) modelling of selected sensor protection systems in terms of strain-transfer efficiency from the structure to the sensing region also been focused in this paper. Finally, the experimental validations of specified sensor protection system in concrete structures have been performed successfully. Protected Extrinsic Fabry-Perot Interferometric (EFPI) and Fibre Bragg Grating (FBG) sensors have been used to monitor the structural health status of plain and composite wrapped concrete cylinders. Results obtained indicate that the protection system for the sensors performs adequately in concrete environment and there is very good correlation between results obtained by the protected fibre optic sensors and conventional electrical resistance strain gauges.

Original language	English
Article number	56
Pages (from-to)	528-539
Number of pages	12
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5765
Issue number	PART 1
DOIs	https://doi.org/10.1117/12.598708
State	Published - 2005
Event	Smart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems - San Diego, CA, United States Duration: 7 Mar 2005 → 10 Mar 2005

Keywords

Concrete structures
Extrinsic fabry-perot interferometer sensor (EFPI)
Fibre Bragg Grating (FBG)
Fibre optic sensor (FOS)
Sensor protection system (SPS)
Smart structures

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title = "Fibre optic sensor protection system and its practical for structural integrity monitoring of concrete structures",

abstract = "This paper is concerned with the design concepts, modelling and implementation of various fibre optic sensor protection systems for development in concrete structures. The design concepts of fibre optic sensor protection system and on-site requirements for surface-mounted and embedded optical fibre sensor in concrete structures have been addressed. The aspects of finite element (FE) modelling of selected sensor protection systems in terms of strain-transfer efficiency from the structure to the sensing region also been focused in this paper. Finally, the experimental validations of specified sensor protection system in concrete structures have been performed successfully. Protected Extrinsic Fabry-Perot Interferometric (EFPI) and Fibre Bragg Grating (FBG) sensors have been used to monitor the structural health status of plain and composite wrapped concrete cylinders. Results obtained indicate that the protection system for the sensors performs adequately in concrete environment and there is very good correlation between results obtained by the protected fibre optic sensors and conventional electrical resistance strain gauges.",

keywords = "Concrete structures, Extrinsic fabry-perot interferometer sensor (EFPI), Fibre Bragg Grating (FBG), Fibre optic sensor (FOS), Sensor protection system (SPS), Smart structures",

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year = "2005",

doi = "10.1117/12.598708",

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T1 - Fibre optic sensor protection system and its practical for structural integrity monitoring of concrete structures

AU - Leng, J. S.

AU - Barnes, R. A.

AU - Hameed, A.

AU - Winter, D.

AU - Tetlow, J.

AU - Mays, G. C.

AU - Fernando, G. F.

PY - 2005

Y1 - 2005

N2 - This paper is concerned with the design concepts, modelling and implementation of various fibre optic sensor protection systems for development in concrete structures. The design concepts of fibre optic sensor protection system and on-site requirements for surface-mounted and embedded optical fibre sensor in concrete structures have been addressed. The aspects of finite element (FE) modelling of selected sensor protection systems in terms of strain-transfer efficiency from the structure to the sensing region also been focused in this paper. Finally, the experimental validations of specified sensor protection system in concrete structures have been performed successfully. Protected Extrinsic Fabry-Perot Interferometric (EFPI) and Fibre Bragg Grating (FBG) sensors have been used to monitor the structural health status of plain and composite wrapped concrete cylinders. Results obtained indicate that the protection system for the sensors performs adequately in concrete environment and there is very good correlation between results obtained by the protected fibre optic sensors and conventional electrical resistance strain gauges.

AB - This paper is concerned with the design concepts, modelling and implementation of various fibre optic sensor protection systems for development in concrete structures. The design concepts of fibre optic sensor protection system and on-site requirements for surface-mounted and embedded optical fibre sensor in concrete structures have been addressed. The aspects of finite element (FE) modelling of selected sensor protection systems in terms of strain-transfer efficiency from the structure to the sensing region also been focused in this paper. Finally, the experimental validations of specified sensor protection system in concrete structures have been performed successfully. Protected Extrinsic Fabry-Perot Interferometric (EFPI) and Fibre Bragg Grating (FBG) sensors have been used to monitor the structural health status of plain and composite wrapped concrete cylinders. Results obtained indicate that the protection system for the sensors performs adequately in concrete environment and there is very good correlation between results obtained by the protected fibre optic sensors and conventional electrical resistance strain gauges.

KW - Concrete structures

KW - Extrinsic fabry-perot interferometer sensor (EFPI)

KW - Fibre Bragg Grating (FBG)

KW - Fibre optic sensor (FOS)

KW - Sensor protection system (SPS)

KW - Smart structures

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DO - 10.1117/12.598708

M3 - 会议文章

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

IS - PART 1

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T2 - Smart Structures and Materials 2005 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems

Y2 - 7 March 2005 through 10 March 2005

ER -

Fibre optic sensor protection system and its practical for structural integrity monitoring of concrete structures

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