Simultaneous temperature and strain measurements performed by a step-changed arc-induced long-period fiber grating

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Gaspar Rego (Autor) Outra; Rosane Falate (Autor) Outra; Oleg Ivanov (Autor) Outra; Jose Luis Santos (Autor) FCUP

Revista

Título: Applied Optics

Vol. 46

Páginas: 1392-1396

ISSN: 1559-128X

Editora: Optical Society of America

Indexação

ISI Web of Knowledge - 27 Citações

Scopus - 33 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-004-B50

DOI: 10.1364/ao.46.001392

Abstract (EN): A compact sensor based on step-changed are-induced long-period fiber gratings was implemented to discriminate between temperature and strain. The proposed sensor consists of a single long-period grating with two sections written consecutively in the SMF-28 fiber using the electric are discharge technique. The two sections have the same period but different fabrication parameters. The operation of the sensor relies on the existence of a difference between the values of temperature and strain sensitivity of two neighboring resonances observed in the spectrum of the step-changed grating. The temperature and strain resolutions obtained for the sensor are 0.2 degrees C and 35 mu epsilon, respectively. (c) 2007 Optical Society of America.

Idioma: Inglês

Tipo (Avaliação Docente): Científica