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Proceedings Paper

Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings
Author(s): G. M. Rego; R, Falate; Hypolito Jose Kalinowski; J. L. Fabris; Paulo V.S. Marques; H. M. Salgado; J L. Santos
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Paper Abstract

A compact sensor able to discriminate between temperature and strain related effects was implemented. The proposed sensing head comprises a single long-period grating with two sections written consecutively in the SMF-28 fiber, by the electric arc discharge technique, using different fabrication parameters. The sensor performance is based on the distinct temperature and strain sensitivity values presented by two neighbor resonances belonging to each grating section. The temperature and strain resolutions are ± 0.1 °C and ± 40 με, respectively.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623387
Show Author Affiliations
G. M. Rego, Instituto Politecnico de Viana do Castelo (Portugal)
INESC-Porto (Portugal)
R, Falate, INESC-Porto (Portugal)
Ctr. Federal de Educacao Tecnologica do Parana (Brazil)
Hypolito Jose Kalinowski, Ctr. Federal de Educacao Tecnologica do Parana (Brazil)
J. L. Fabris, Ctr. Federal de Educacao Tecnologica do Parana (Brazil)
Paulo V.S. Marques, Univ. do Porto (Portugal)
H. M. Salgado, INESC-Porto (Portugal)
Univ. do Porto (Portugal)
J L. Santos, INESC-Porto (Portugal)
Univ. do Porto (Portugal)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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