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Proceedings Paper

Embedding silica and polymer fibre Bragg gratings (FBG) in plastic 3D-printed sensing patches
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Paper Abstract

This paper reports the first demonstration of a silica fibre Bragg grating (SOFBG) embedded in an FDM 3-D printed housing to yield a dual grating temperature-compensated strain sensor. We also report the first ever integration of polymer fibre Bragg grating (POFBG) within a 3-D printed sensing patch for strain or temperature sensing. The cyclic strain performance and temperature characteristics of both devices are examined and discussed. The strain sensitivities of the sensing patches were 0.40 and 0.95 pm/με for SOFBG embedded in ABS, 0.38 pm/με for POFBG in PLA, and 0.15 pm/με for POFBG in ABS. The strain response was linear above a threshold and repeatable. The temperature sensitivity of the SOFBG sensing patch was found to be up to 169 pm/°C, which was up to 17 times higher than for an unembedded silica grating. Unstable temperature response POFBG embedded in PLA was reported, with temperature sensitivity values varying between 30 and 40 pm/°C.

Paper Details

Date Published: 27 April 2016
PDF: 12 pages
Proc. SPIE 9886, Micro-Structured and Specialty Optical Fibres IV, 98860N (27 April 2016); doi: 10.1117/12.2228753
Show Author Affiliations
Michal G. Zubel, Aston Univ. (United Kingdom)
Kate Sugden, Aston Univ. (United Kingdom)
David J. Webb, Aston Univ. (United Kingdom)
David Sáez-Rodríguez, Univ. Politecnica de Valencia (Spain)
Kristian Nielsen, DTU Fotonik (Denmark)
Ole Bang, DTU Fotonik (Denmark)

Published in SPIE Proceedings Vol. 9886:
Micro-Structured and Specialty Optical Fibres IV
Kyriacos Kalli; Alexis Mendez, Editor(s)

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