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dc.contributor.authorMadruga Saavedra, Francisco Javier 
dc.contributor.authorSfarra, Stefano
dc.contributor.authorPerilli, Stefano
dc.contributor.authorPivarciová, Elena
dc.contributor.authorLópez Higuera, José Miguel 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2020-02-04T17:52:44Z
dc.date.available2020-02-04T17:52:44Z
dc.date.issued2020-01-06
dc.identifier.issn1424-8220
dc.identifier.otherTEC2016-76021-C2-2-Res_ES
dc.identifier.urihttp://hdl.handle.net/10902/18084
dc.description.abstractThe relationship between wood and its degree of humidity is one of the most important aspects of its use in construction and restoration. The wood presents a behavior similar to a sponge, therefore, moisture is related to its expansion and contraction. The nondestructive evaluation (NDE) of the amount of moisture in wood materials allows to define, e.g., the restoration procedures of buildings or artworks. In this work, an integrated study of two non-contact techniques is presented. Infrared thermography (IRT) was able to retrieve thermal parameters of the wood related to the amount of water added to the samples, while the interference pattern generated by speckles was used to quantify the expansion and contraction of wood that can be related to the amount of water. In twenty-seven wooded samples, a known quantity of water was added in a controlled manner. By applying advanced image processing to thermograms and specklegrams, it was possible to determine fundamental values controlling both the absorption of water and the main thermophysical parameters that link the samples. On the one hand, results here shown should be considered preliminary because the experimental values obtained by IRT need to be optimized for low water contents introduced into the samples. On the other hand, speckle interferometry by applying an innovative procedure provided robust results for both high and low water contents.es_ES
dc.description.sponsorshipThis work was supported in part by the Spanish Economy and Competitiveness Minister under project TEC2016-76021-C2-2-R; Jose Castillejo Grant CAS17-00216 by the Spanish Minister of Education, Culture and Sports.es_ES
dc.format.extent10 p.es_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rights© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.es_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceSensors, 2020, 20(1), 316es_ES
dc.subject.otherInfrared thermographyes_ES
dc.subject.otherSpeckle inspectiones_ES
dc.subject.otherWooden structureses_ES
dc.subject.otherNondestructive evaluationes_ES
dc.subject.otherMoisturees_ES
dc.subject.otherDefectes_ES
dc.subject.otherHeat and mass transferes_ES
dc.titleMeasuring the water content in wood using step-heating thermography and speckle patterns-preliminary resultses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.3390/s20010316
dc.type.versionpublishedVersiones_ES


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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.Except where otherwise noted, this item's license is described as © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.