Methane detection system based on wavelength modulation spectroscopy and hollow-core fibres

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Magalhaes, F (Autor) Outra; Carvalho, JP (Autor) Outra; Ferreira, LA (Autor) Outra; Araujo, FM (Autor) Outra; Santos, JL (Autor) FCUP

Ata de Conferência Internacional

Título: Proceedings of IEEE Sensors

Páginas: 1277-1280

2008 IEEE Sensors, SENSORS 2008

Lecce, 26 October 2008 through 29 October 2009

Indexação

ISI Web of Knowledge

Scopus - 19 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Tecnologia > Optoelectrónica

Outras Informações

ID Authenticus: P-007-QG0

DOI: 10.1109/icsens.2008.4716677

Abstract (EN): An optoelectronic system for detection and monitoring of methane has been developed and implemented. The signal processing technique used in the proposed system is based on Wavelength Modulation Spectroscopy (WMS). When associated with the revolutionary microstructured fibres, this scheme revealed an effective way to measure gas concentration. Aiming the optimization of the sensing head design, the methane diffusion time inside a hollow-core fibre was evaluated. An error of 2.8% between experimental and theoretical values was obtained, thus validating the adopted model. These results were very encouraging towards the implementation of a practical unit for remote gas monitoring applications. © 2008 IEEE.

Idioma: Inglês

Tipo (Avaliação Docente): Científica