A method for determining the position of FBG sensors accurately

Conference paper (2019)

Authors

Aydin Rajabzadeh Signal Processing Systems - EEMCS
R.C. Hendriks Signal Processing Systems - EEMCS
R. Heusdens Signal Processing Systems - EEMCS
R.M. Groves Structural Integrity & Composites - Aerospace Engineering
Research Group
Signal Processing Systems (EEMCS) (TU Delft)
Copyright: © 2019 Aydin Rajabzadeh, R.C. Hendriks, R. Heusdens, R.M. Groves
DOI: https://doi.org/10.1117/12.2545756
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Published Date

2019

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Signal Processing Systems

Abstract

Fibre Bragg grating sensors have gained a lot of attention in damage detection and strain measurement applications in the past few decades. These applications include matrix crack detection and delamination tip monitoring in composite structures, crack detection in concrete and civil engineering structures and etc. The damage localisation accuracy of such methods, directly depends on precise knowledge on the position of the FBG sensor. However, this information is not commonly provided by manufacturing companies with such accuracy. In this paper, we propose a novel approach to accurately determine the position of an FBG sensor with a low complexity setup. The proposed method offers an accuracy of below 10 μm, and can consequently increase the spatial resolution of damage detection methods.

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