Influence of Humidity on Fiber Bragg Grating Sensors

Ander Montero; Gotzon Aldabaldetreku; Gaizka Durana; Iagoba Jorge; Idurre Sáez de Ocáriz; Joseba Zubia

doi:10.1155/2014/405250

Advances in Materials Science and Engineering (Jan 2014)

Influence of Humidity on Fiber Bragg Grating Sensors

Ander Montero,
Gotzon Aldabaldetreku,
Gaizka Durana,
Iagoba Jorge,
Idurre Sáez de Ocáriz,
Joseba Zubia

Affiliations

Ander Montero: Aeronautical Technologies Center (CTA), C/Juan de la Cierva, No.1 Parque Tecnológico de Álava, Miñano, 01510 Álava, Spain
Gotzon Aldabaldetreku: Department of Communications Engineering, Faculty of Engineering, University of the Basque Country (UPV/EHU), C/Alda. Urquijo S/N, 48013 Bilbao, Spain
Gaizka Durana: Department of Communications Engineering, Faculty of Engineering, University of the Basque Country (UPV/EHU), C/Alda. Urquijo S/N, 48013 Bilbao, Spain
Iagoba Jorge: Aeronautical Technologies Center (CTA), C/Juan de la Cierva, No.1 Parque Tecnológico de Álava, Miñano, 01510 Álava, Spain
Idurre Sáez de Ocáriz: Aeronautical Technologies Center (CTA), C/Juan de la Cierva, No.1 Parque Tecnológico de Álava, Miñano, 01510 Álava, Spain
Joseba Zubia: Department of Communications Engineering, Faculty of Engineering, University of the Basque Country (UPV/EHU), C/Alda. Urquijo S/N, 48013 Bilbao, Spain

DOI: https://doi.org/10.1155/2014/405250
Journal volume & issue: Vol. 2014

Abstract

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We demonstrate the influence of the relative humidity (RH) on the wavelength of fiber Bragg grating sensors (FBGS), performing tests with five FBGS at different humidity and temperature conditions. These tests were performed in a climate chamber whose RH changes according to a scheduled profile from 30% to 90%, in steps of 10%. These profiles were repeated for a wide range of temperatures from 10∘C to 70∘C, in steps of 10∘C. Two different types of instrumentation methods have been tested, spot welding and epoxy bonding, in two different materials, steel and carbon fiber reinforced polymer (CFRP). We discuss the results for each type of sensor and instrumentation method by analyzing the linearity of the Bragg wavelength with RH and temperature.

Published in Advances in Materials Science and Engineering

ISSN: 1687-8434 (Print); 1687-8442 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://onlinelibrary.wiley.com/journal/5928

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