Proceedings (Jul 2019)

Bi-Dimensional Deflection Estimation by Embedded Fiber Bragg Gratings Sensors

  • Pasquale Di Palma,
  • Giovanna Palumbo,
  • Massimo Della Pietra,
  • Vincenzo Canale,
  • Mariagrazia Alviggi,
  • Agostino Iadicicco,
  • Stefania Campopiano

DOI
https://doi.org/10.3390/proceedings2019015003
Journal volume & issue
Vol. 15, no. 1
p. 3

Abstract

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In this work, we present and discuss on the deflection estimation of a bi-dimensional panel by using Fiber Bragg Gratings (FBGs) as strain sensors embedded in the structure and a method based on the classical beam theory. The existing difficulties in the direct measure of the deflection are overcome thanks to the proposed technique and a real-time indirect structural monitoring is possible both on small and large structure. In many tests the estimated deflection with the proposed method has been compared with direct deflection measurements obtained with a mechanical comparator showing good agreement. A resolution of few tens of microns over a surface of the order of 1 m2 has been reached.

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