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

• Type: Article in International Conference Proceedings Book
• Date: 2008

Authors

Magalhaes, F (Author) Other; Carvalho, JP (Author) Other; Ferreira, LA (Author) Other; Araujo, FM (Author) Other; Santos, JL (Author) FCUP

Conference proceedings International

Title: Proceedings of IEEE Sensors

Pages: 1277-1280

2008 IEEE Sensors, SENSORS 2008

Lecce, 26 October 2008 through 29 October 2009

Indexing

ISI Web of Knowledge

Scopus - 19 Citations

Scientific classification

CORDIS: Technological sciences > Technology > Optronics

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific