New developments on fibre optic colorimetrie sensors for dissolved CO2 in aquatic environments

Ver registo simples
dc.contributor.authorCoelho, L.pt_PT
dc.contributor.authorPereira, Carlospt_PT
dc.contributor.authorMendes, Joãopt_PT
dc.contributor.authorAlmeida, José Manuel Marques Martins Dept_PT
dc.contributor.authorKovacs, B.pt_PT
dc.contributor.authorBalogh, K.pt_PT
dc.contributor.authorBorges, Teresapt_PT
dc.contributor.authorJorge, Pedro A. S.pt_PT
dc.date.accessioned2019-01-07T15:41:26Z
dc.date.available2019-01-07T15:41:26Z
dc.date.issued2017
dc.date.updated2018-12-30T20:17:27Z
dc.description.abstractThe detection of dissolved carbon dioxide (dCO2) is made possible through a colorimetric effect that occurs in a sensitive membrane. The reaction with dCO2 changes the pH of the membrane causing a small difference in its colour which results in a characteristic absorbance spectrum band near 435 nm. A sensing platform based on this effect was developed and tested in gaseous and in aqueous environments. It is a combination of a bundle of large core fibre optics (with diameters above 200 µm) with light emission diodes (LEDs) in the visible range of the spectrum, a silicon photodetector and a polymer membrane sensitive to CO2. A variation in the absorption of 3 / %VV was obtained in the range from 0 to 1.6 % of gaseous CO2 with an estimated response time below 60 seconds.pt_PT
dc.identifier978-1-5090-5278-3en_US
dc.identifier.citationCoelho, L.; Pereira, Carlos; Mendes, Joao; Martins de Almeida, José Manuel Marques; Kovacs, B.; Balogh, K.; Borges, Teresa; Pedro A. S. Jorge. New developments on fibre optic colorimetrie sensors for dissolved CO<inf>2</inf> in aquatic environments, Trabalho apresentado em OCEANS 2017 - Aberdeen, In OCEANS 2017 - Aberdeen, Aberdeen, United Kingdom, 2017.pt_PT
dc.identifier.urihttp://hdl.handle.net/10348/8995
dc.language.isoengpt_PT
dc.publisherIEEEpt_PT
dc.rightsopen accesspt_PT
dc.subjectColorimetric sensorpt_PT
dc.subjectFibre optic sensorpt_PT
dc.subjectSensitive membranept_PT
dc.subjectDissolved carbon dioxidept_PT
dc.titleNew developments on fibre optic colorimetrie sensors for dissolved CO2 in aquatic environmentspt_PT
dc.typejournal articlept_PT
dspace.entity.typePublicationen
Ficheiros
Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
New developments on fibre optic colorimetric sensors for dissolved CO2 in aquatic environments.pdf
Tamanho:
1.05 MB
Formato:
Adobe Portable Document Format
Ver/Abrir
Coleções
DFIS - Artigo de Conferência em Revista Científica Indexada