Optimization of the frequency-modulated continuous wave technique for referencing and multiplexing intensity-based fiber optic sensors

• Tipo: Artigo em Revista Científica Internacional
• Data: 2011

Autores

Perez Herrera, RA (Autor) Outra; Pereira, DA (Autor) Outra; Frazao, O (Autor) FCUP; Castro M C Ferreira (Autor) Outra; Santos, JL (Autor) FCUP; Araujo, FM (Autor) Outra; Ferreira, LA (Autor) Outra; Baptista, JM (Autor) Outra; Lopez Amo, M (Autor) Outra

Revista

Título: Measurement: Journal of the International Measurement Confederation

Vol. 44

Páginas: 230-237

ISSN: 0263-2241

Editora: Elsevier

Indexação

ISI Web of Knowledge - 3 Citações

Scopus - 3 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-002-Z4P

DOI: 10.1016/j.measurement.2010.09.045

Abstract (EN): In this paper, we demonstrate the interrogation of fiber optic intensity sensors by using the combination of the frequency-modulated continuous wave concept with the spectral selective reflectivity of fiber Bragg gratings. Thus, we multiplex these kinds of sensors with this technique having simultaneously a referenced system. The basis of this dual functionality is described and results are presented for the case of interrogation of two multiplexed intensity sensors. Their evaluation permits to establish the conditions to address a sensor network of this type. Also, it is proposed a strategy to implement this sensing approach without the requirement of using optical fiber delay lines in the sensor heads.

Idioma: Inglês

Tipo (Avaliação Docente): Científica