Strain-temperature discrimination using a step spectrum profile fibre Bragg grating arrangement

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Frazao, O (Autor) Outra; Romero, R (Autor) Outra; Araujo, FM (Autor) Outra; Ferreira, LA (Autor) Outra; Santos, JL (Autor) FCUP

Revista

Título: Sensors and Actuators, A: Physical

Vol. 120

Páginas: 490-493

ISSN: 0924-4247

Editora: Elsevier

Indexação

ISI Web of Knowledge - 20 Citações

Scopus - 28 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

Outras Informações

ID Authenticus: P-000-3AD

DOI: 10.1016/j.sna.2005.02.006

Abstract (EN): A sensing head for simultaneous measurement of temperature and strain is presented and analyzed. The proposed configuration is based on the combination of two Bragg gratings, written in different fibres and with different reflectivities, to form a single signature with a reflected step spectrum profile. This characteristic minimizes the spectrum allocated to each sensor in a series multiplexing topology. By measuring the changes in the peak wavelength and spectral width of this signature, resolutions of +/- 0.65 degrees C/root Hz and +/- 2.55 mu epsilon/root Hz were achieved for temperature and strain measurements, respectively.

Idioma: Inglês

Tipo (Avaliação Docente): Científica