Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings

G. M. Rego; R, Falate; Hypolito Jose Kalinowski; J. L. Fabris; Paulo V.S. Marques; H. M. Salgado; J L. Santos

doi:10.1117/12.623387

23 May 2005 Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings

G. M. Rego, R, Falate, Hypolito Jose Kalinowski, J. L. Fabris, Paulo V.S. Marques, H. M. Salgado, J L. Santos

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623387
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

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.

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G. M. Rego, R, Falate, Hypolito Jose Kalinowski, J. L. Fabris, Paulo V.S. Marques, H. M. Salgado, and J L. Santos "Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623387

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