Please use this identifier to cite or link to this item: http://hdl.handle.net/10348/9033
Full metadata record
DC FieldValueLanguage
dc.contributor.authorCoelho, Luíspt_PT
dc.contributor.authorViegas, Dianapt_PT
dc.contributor.authorSantos, José Luíspt_PT
dc.contributor.authorAlmeida, José Manuel Marques Martins dept_PT
dc.date.accessioned2019-01-17T15:19:38Z-
dc.date.available2019-01-17T15:19:38Z-
dc.date.issued2016-08-01-
dc.identifier.otherhttps://doi.org/10.1016/j.talanta.2015.10.067-
dc.identifier.urihttp://hdl.handle.net/10348/9033-
dc.description.abstractA hybrid optical sensing scheme based on a fiber Bragg grating (FBG) combined with a titanium dioxide coated long period fiber grating (LPFG) for monitoring organic solvents in high refractive index edible oils is reported. In order to investigate and optimize the sensor performance, two different FBG/LPFG interrogation systems were investigated. The readout of the sensor was implemented using either the wavelength shift of the LPFG resonance dip or the variation in the optical power level of the reflected/transmitted light at the FBG wavelength peak, which in turn depends on the wavelength position of the LPFG resonance. Hexane concentrations up to 20%V/V, corresponding to the refractive index range from 1.451 to 1.467, were considered. For the transmission mode of operation, sensitivities of 1.41 nm/%V/V and 0.11 dB/%V/V, with resolutions of 0.58%V/V and 0.29%V/V, were achieved when using the LPFG wavelength shift and the FBG transmitted optical power, respectively. For the FBG reflection mode of operation, a sensitivity of 0.07 dB/%V/V and a resolution better than 0.16%V/V were estimated.pt_PT
dc.language.isoengpt_PT
dc.rightsclosedAccesspt_PT
dc.subjectMonitoring contamination of olive oilpt_PT
dc.subjectOrganic solvents in edible oilspt_PT
dc.subjectTitanium dioxide coatingpt_PT
dc.subjectLong period fiber gratingpt_PT
dc.subjectFiber Bragg gratingpt_PT
dc.titleOptical sensor based on hybrid FBG/titanium dioxide coated LPFG for monitoring organic solvents in edible oilspt_PT
dc.typearticlept_PT
degois.publication.firstPage170pt_PT
degois.publication.lastPage176pt_PT
degois.publication.titleTalantapt_PT
degois.publication.volume148pt_PT
dc.peerreviewedyespt_PT
Appears in Collections:DFIS - Artigo publicado em Revista Científica Indexada

Files in This Item:
File Description SizeFormat 
OpticalsensorbasedonhybridFBGtitaniumdioxidecoatedLPFG.pdf
  Restricted Access
1,82 MBAdobe PDFView/Open Request a copy


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex mendeley Endnote Logotipo do DeGóis Logotipo do Orcid 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.