Remote System for Detection of Low-Levels of Methane Based on Photonic Crystal Fibres and Wavelength Modulation Spectroscopy

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dc.contributor.author Luís Alberto Ferreira en
dc.contributor.author J. Van Roosbroeck en
dc.contributor.author Francisco Araújo en
dc.contributor.author J. C. Knight en
dc.contributor.author Joel Pedro Carvalho en
dc.contributor.author H. Lehmann en
dc.contributor.author H. Bartelt en
dc.contributor.author Filipe Magalhães en
dc.contributor.author R. Amezcua-Correa en
dc.contributor.author José Luís Santos en
dc.date.accessioned 2017-11-16T12:45:58Z
dc.date.available 2017-11-16T12:45:58Z
dc.date.issued 2009 en
dc.description.abstract In this work we described an optical fibre sensing system for detecting low levels of methane. The properties of hollow-core photonic crystal fibres are explored to have a sensing head with favourable characteristics for gas sensing, particularly in what concerns intrinsic readout sensitivity and gas diffusion time in the sensing structure. The sensor interrogation was performed applying the Wavelength Modulation Spectroscopy technique, and a portable measurement unit was developed with performance suitable for remote detection of low levels of methane. This portable system has the capacity to simultaneously interrogate four remote photonic crystal fibre sensing heads. en
dc.identifier.uri http://repositorio.inesctec.pt/handle/123456789/1744
dc.language eng en
dc.relation 347 en
dc.relation 4388 en
dc.relation 2459 en
dc.relation 1908 en
dc.rights info:eu-repo/semantics/openAccess en
dc.title Remote System for Detection of Low-Levels of Methane Based on Photonic Crystal Fibres and Wavelength Modulation Spectroscopy en
dc.type article en
dc.type Publication en
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