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dc.contributor.authorNevrlý, Václav
dc.contributor.authorKlečka, Vít
dc.contributor.authorVašínek, Michal
dc.contributor.authorVálek, Václav
dc.contributor.authorSuchánek, Jan
dc.contributor.authorDostál, Michal
dc.contributor.authorHric, Branislav
dc.contributor.authorBitala, Petr
dc.contributor.authorZelinger, Zdeněk
dc.date.accessioned2018-09-07T12:23:50Z
dc.date.available2018-09-07T12:23:50Z
dc.date.issued2018
dc.identifier.citationMeasurement Science Review. 2018, vol. 18, issue 4, p. 158-161.cs
dc.identifier.issn1335-8871
dc.identifier.urihttp://hdl.handle.net/10084/131616
dc.description.abstractThis communication reports technical notes on the development and application of an automated line-shape fitting procedure for wavelength modulation spectroscopy (WMS). Near-infrared transitions of carbon dioxide (CO2) around 1573 nm were measured in vertical cold (non-reacting) flow of CO2 at atmospheric pressure using WMS with demodulation at second harmonic frequency. Semi-empirical model based on the set of so-called Gabor functions was developed and parameters of Lorentzian line-shape profile and its asymmetry resulting from simultaneous frequency and amplitude response of the current-modulated semiconductor laser were determined. Nonlinear least-square fitting procedure employing differential evolution algorithm was successfully utilized for performing this task. Line-shape fitting procedure enabling efficient signal de-noising and background subtraction of wavelength modulation spectra was implemented into an open-source code.cs
dc.format.extent4009877 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoencs
dc.publisherDe Gruytercs
dc.relation.ispartofseriesMeasurement Science Reviewcs
dc.relation.urihttp://doi.org/10.1515/msr-2018-0022cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectgas sensingcs
dc.subjectspectroscopycs
dc.subjectmodulationcs
dc.subjectmodelcs
dc.subjectline-shape asymmetrycs
dc.titleA new line-shape asymmetry model for wavelength modulation spectroscopy in gaseous flowscs
dc.typearticlecs
dc.identifier.doi10.1515/msr-2018-0022
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume18cs
dc.description.issue4cs
dc.description.lastpage161cs
dc.description.firstpage158cs
dc.identifier.wos000441577700004


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