In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands

I. McKeeman; G. Fusiek; M. Perry; P. Niewczas; M. Johnston

doi:10.1117/12.2193193

In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands

I. McKeeman, G. Fusiek, M. Perry, P. Niewczas, M. Johnston

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

4 Citations (Scopus)

163 Downloads (Pure)

Abstract

In this work, we demonstrate active and passive methods for in-situ temperature calibration of fibre Bragg grating strain and temperature sensors. The method is suitable for characterizing sensors which are already attached to the steel reinforcements of civil structures. The proposed method, which involves the use of active induction heating or passive room temperature fluctuations, can be implemented using portable equipment, is time efficient, and can be used to calibrate attached sensors on-site, rather than in lab conditions. Preliminary results of the induction heating calibration show good agreement with pre-calibrated temperature sensors. In-situ calibration of fibre strain sensors, attached to a prestressing strand is also successfully carried out.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	Hypolito J. Kalinowski, José Luís Fabris, Wojtek J. Bock
Volume	9634
DOIs	https://doi.org/10.1117/12.2193193
Publication status	Published - 2015
Event	24th International Conference on Optical Fibre Sensors - Brazil, Curitiba, Brazil Duration: 28 Sept 2015 → 2 Oct 2015

Conference

Conference	24th International Conference on Optical Fibre Sensors
Country/Territory	Brazil
City	Curitiba
Period	28/09/15 → 2/10/15

Keywords

fibre bragg gratings
prestress monitoring
structural health monitoring
temperature calibration

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McKeeman-etal-OFS242015-In-situ-temperature-calibration-procedure-for-temperatureAccepted author manuscript, 471 KB

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McKeeman, I., Fusiek, G., Perry, M., Niewczas, P., & Johnston, M. (2015). In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands. In H. J. Kalinowski, J. L. Fabris, & W. J. Bock (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9634). Article 96345I https://doi.org/10.1117/12.2193193

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note = "Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited; 24th International Conference on Optical Fibre Sensors ; Conference date: 28-09-2015 Through 02-10-2015",

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McKeeman, I, Fusiek, G, Perry, M, Niewczas, P & Johnston, M 2015, In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands. in HJ Kalinowski, JL Fabris & WJ Bock (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 9634, 96345I, 24th International Conference on Optical Fibre Sensors, Curitiba, Brazil, 28/09/15. https://doi.org/10.1117/12.2193193

In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands. / McKeeman, I.; Fusiek, G.; Perry, M. et al.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Hypolito J. Kalinowski; José Luís Fabris; Wojtek J. Bock. Vol. 9634 2015. 96345I.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

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T1 - In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands

AU - McKeeman, I.

AU - Fusiek, G.

AU - Perry, M.

AU - Niewczas, P.

AU - Johnston, M.

N1 - Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, 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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Y1 - 2015

N2 - In this work, we demonstrate active and passive methods for in-situ temperature calibration of fibre Bragg grating strain and temperature sensors. The method is suitable for characterizing sensors which are already attached to the steel reinforcements of civil structures. The proposed method, which involves the use of active induction heating or passive room temperature fluctuations, can be implemented using portable equipment, is time efficient, and can be used to calibrate attached sensors on-site, rather than in lab conditions. Preliminary results of the induction heating calibration show good agreement with pre-calibrated temperature sensors. In-situ calibration of fibre strain sensors, attached to a prestressing strand is also successfully carried out.

AB - In this work, we demonstrate active and passive methods for in-situ temperature calibration of fibre Bragg grating strain and temperature sensors. The method is suitable for characterizing sensors which are already attached to the steel reinforcements of civil structures. The proposed method, which involves the use of active induction heating or passive room temperature fluctuations, can be implemented using portable equipment, is time efficient, and can be used to calibrate attached sensors on-site, rather than in lab conditions. Preliminary results of the induction heating calibration show good agreement with pre-calibrated temperature sensors. In-situ calibration of fibre strain sensors, attached to a prestressing strand is also successfully carried out.

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In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands

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