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Thermal Camera-Based Fourier Transform Infrared Thermospectroscopic Imager

dc.rights.licenseopenen_US
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorCHEVALIER, Stephane
dc.contributor.authorTOURVIEILLE, Jean-Noël
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorSOMMIER, Alain
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorBATSALE, Jean-Christophe
dc.contributor.authorBECCARD, Bruno
hal.structure.identifierInstitut de Mécanique et d'Ingénierie [I2M]
dc.contributor.authorPRADÈRE, Christophe
dc.date.accessioned2021-12-09T16:31:22Z
dc.date.available2021-12-09T16:31:22Z
dc.date.issued2020-10-29
dc.identifier.issn0003-7028en_US
dc.identifier.urioai:crossref.org:10.1177/0003702820973026
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/124096
dc.description.abstractEnIn this technical note, we present an advanced thermospectroscopic imager based on a Fourier transform infrared (FTIR) spectrometer and a thermal camera. This new instrument can image both thermal emission and multispectral absorbance fields in a few seconds at a resolution of 4 cm-1 or less. The setup is made of a commercial FTIR spectrometer (Thermofisher Nicolet iS50R) synchronized to an IR camera (InSb and SLS) as a detector to record the interferograms in each pixel of the images. A fast Fourier transform algorithm with apodization and Mertz phase correction is applied to the images, and the background is rationed to process the interferograms into the absorbance spectra in each pixel. The setup and image processing are validated using thin polystyrene films; during this processing, more than 1750 spectra per second are recorded. A spectral resolution equivalent to that of commercial FTIR spectrometers is obtained for absorbance peaks valued less than 2. The transient capability of the FTIR thermospectroscopic imager is illustrated by measuring the heterogeneous thermal and absorbance fields during the phase change of paraffin over a few minutes. The complete mechanism of the thermochemical processes during a polymer solidification is revealed through the thermospectroscopic images, demonstrating the usefulness of such an instrument in studying fast transient thermal and chemical phenomena with an improved spectral resolution.
dc.language.isoENen_US
dc.sourcecrossref
dc.subject.enFourier transform infrared
dc.subject.enFT-IR
dc.subject.enspectroscopy
dc.subject.enimaging
dc.subject.eninfrared
dc.subject.enIR
dc.subject.encalibration
dc.subject.enparaffin
dc.title.enThermal Camera-Based Fourier Transform Infrared Thermospectroscopic Imager
dc.typeArticle de revueen_US
dc.identifier.doi10.1177/0003702820973026en_US
dc.subject.halSciences de l'ingénieur [physics]/Matériauxen_US
bordeaux.journalApplied Spectroscopyen_US
bordeaux.page000370282097302en_US
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionCNRSen_US
bordeaux.institutionINRAEen_US
bordeaux.institutionArts et Métiersen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-03307804
hal.version1
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Spectroscopy&rft.date=2020-10-29&rft.spage=000370282097302&rft.epage=000370282097302&rft.eissn=0003-7028&rft.issn=0003-7028&rft.au=CHEVALIER,%20Stephane&TOURVIEILLE,%20Jean-No%C3%ABl&SOMMIER,%20Alain&BATSALE,%20Jean-Christophe&BECCARD,%20Bruno&rft.genre=article


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