Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/7369
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dc.contributor.authorSantos,JSen
dc.contributor.authorRaimundo,IMen
dc.contributor.authorCordeiro,CMBen
dc.contributor.authorBiazoli,CRen
dc.contributor.authorCarlos Jesus Gouveiaen
dc.contributor.authorPedro Jorgeen
dc.date.accessioned2018-01-25T14:14:27Z-
dc.date.available2018-01-25T14:14:27Z-
dc.date.issued2014en
dc.identifier.urihttp://repositorio.inesctec.pt/handle/123456789/7369-
dc.identifier.urihttp://dx.doi.org/10.1016/j.snb.2014.01.101en
dc.description.abstractNafion has been evaluated as a sensing phase of an optical fibre humidity sensor based on a low-finesse Fabry-Perot interferometer. The sensor was constructed by manual deposition of a drop of a Nafion solution on the tip of a single mode optical fibre, forming a Fabry-Perot resonant cavity. The absorption of water by the Nafion film makes it swells, changing its refractive index and the length of the cavity, which produces a phase shift in the interference signal. The sensitivity, stability and response time of the sensor were evaluated in the RH range from 22 to 80% by analysing the correspondent reflection spectra of the interference fringes. As a result, it was obtained that Nafion can be used as sensing phase of an optical fibre humidity sensor based on optical fibre Fabry-Perot interferometry, presenting a response time of 242 ms (3% RH variation) and a sensitivity of 3.5 nm/%RH.en
dc.languageengen
dc.relation3565en
dc.relation4965en
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.titleCharacterisation of a Nafion film by optical fibre Fabry-Perot interferometry for humidity sensingen
dc.typearticleen
dc.typePublicationen
Appears in Collections:Non INESC TEC publications - Articles in International Journals

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