Simultaneous measurement of strain and temperature using a Bragg grating structure written in germanosilicate fibres

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

Frazao, O (Autor) Outra; Santos, JL (Autor) FCUP

Revista

Título: Journal of Optics A: Pure and Applied Optics

Vol. 6

Páginas: 553-556

ISSN: 1464-4258

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge - 43 Citações

Scopus - 50 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-000-A6X

DOI: 10.1088/1464-4258/6/6/010

Abstract (EN): A fibre Bragg grating sensing configuration is presented for simultaneous measurement of strain and temperature. The proposed concept relies on writing a single Bragg grating on the splice region of two fibres with different levels of germanium doping. Doing so, a grating structure appears with three resonance peaks, which show distinct temperature sensitivities but similar strain responses. The experimental validation of the concept indicated resolutions of +/-1.5 degreesC Hz(-1/2) and +/-5.6 muepsilon Hz(-1/2) over measurement ranges of 80 degreesC and 1000 muepsilon for temperature and strain, respectively.

Idioma: Inglês

Tipo (Avaliação Docente): Científica