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Permittivity determination of composite materials based on a 3D electric field model

Citace:
HAMAR, R., TRNKA, P. Permittivity determination of composite materials based on a 3D electric field model. In Proceedings of the International Conference 2016 Conference on Diagnostics in Electrical Engineering (Diagnostika) : CDEE 2016. Pilsen: University of West Bohemia in Pilsen, 2016. s. 158-161. ISBN: 978-1-5090-6179-2 , ISSN: 2464-7071
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: Permittivity determination of composite materials based on a 3D electric field model
Rok vydání: 2016
Místo konání: Pilsen
Název zdroje: University of West Bohemia in Pilsen
Autoři: Ing. Roman Hamar Ph.D. , Doc. Ing. Pavel Trnka Ph.D. ,
Abstrakt EN: Composite materials are an integral part of electrical systems; however, the determination of their dielectric properties through calculation is sometimes problematic. The aim of this paper is to demonstrate a way to determine the effective permittivity of a composite material by using a 3D electric field model while exploiting the distribution of electric energy and to verify the results by values obtained experimentally. Two types of samples were investigated: with the inclusion phase evenly distributed across the host phase in one plane and in two planes. The experiment was conducted by means of Tettex 2830/2831, a precise dielectric analyzer for solid and liquid dielectrics and Tettex 2914, a special temperature-controlled electrode system. The computation was performed by COMSOL Multiphysics professional software. The results obtained through a 3D model corresponded to the results of the experiment.
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