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Proceedings Paper

In-situ temperature calibration procedure for temperature and strain fibre Bragg grating sensors for monitoring pre-stressing strands
Author(s): I. Mckeeman; G. Fusiek; M. Perry; P. Niewczas; M. Johnston
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Paper 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 characterising 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.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96345I (28 September 2015); doi: 10.1117/12.2193193
Show Author Affiliations
I. Mckeeman, Univ. of Strathclyde (United Kingdom)
G. Fusiek, Univ. of Strathclyde (United Kingdom)
M. Perry, Univ. of Strathclyde (United Kingdom)
P. Niewczas, Univ. of Strathclyde (United Kingdom)
M. Johnston, EDF Energy Plc (United Kingdom)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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