Development and application of spatial carrier interferometry for whole field real-time investigation of temperatures in liquid media

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dc.contributor.authorPsota, Pavel
dc.contributor.authorDančová, Petra
dc.contributor.authorCubreli, Gramoz
dc.contributor.authorLédl, Vít
dc.contributor.authorVít, Tomáš
dc.contributor.authorDoleček, Roman
dc.contributor.authorMatoušek, Ondřej
dc.date.accessioned2019-08-06T06:32:24Z
dc.date.available2019-08-06T06:32:24Z
dc.date.issued2019
dc.description.abstractThis paper presents interferometric measurement of dynamic phenomena in transparent media. The method is based on differential spatial carrier interferometry that provides interesting features for experimental fluid mechanics. The method is particularly suitable for progressively changing phenomena. Temperature is automatically evaluated from a single interferogram, and a differential approach allows to decrease dynamic range of the measurement. As a consequence, in case of high temporal sampling of the phenomena, no spatial phase unwrapping is needed. Otherwise, the spatial unwrapping is performed on low fringe density phase maps and the fringe order is unambiguously determined. The interferometric method was experimentally tested by measuring dynamically varying temperature fields in water. The inspected phenomenon was a convection of water layers within a glass tank, where a heat sink was positioned at the bottom of the tank. Interferometric and temperature measurements were simultaneously conducted. Temperature was measured using four thermocouples to verify the reliability of the method. Results of both approaches are in a good agreement.cs
dc.format.extent10 strancs
dc.identifier.doi10.1016/j.ijthermalsci.2019.106029
dc.identifier.urihttps://dspace.tul.cz/handle/15240/153078
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S129007291832129X
dc.language.isocscs
dc.relation.ispartofInternational Journal of Thermal Sciences
dc.subjectWatercs
dc.subjectInterferometrycs
dc.subjectSpatial carriercs
dc.subjectFourier transformcs
dc.subjectTemperature fieldcs
dc.subjectConvectioncs
dc.titleDevelopment and application of spatial carrier interferometry for whole field real-time investigation of temperatures in liquid mediacs
local.article.number106029
local.relation.volume145
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