Electrical impedance as a technique for civil engineer structures surveillance : considerations on the galvanic insulation of samples

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Title:	Electrical impedance as a technique for civil engineer structures surveillance : considerations on the galvanic insulation of samples
Author:	Torrents Dolz, Josep M.; Juan Garcia, Pablo; Aguado de Cea, Antonio
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció
Abstract:	Since Electric Impedance Spectroscopy (EIS) has been widely used to determine physical properties of materials, it becomes necessary to evaluate different error contributions. In this work, it is studied the effect of the current leakage due to the lack of galvanic insulation from sample to ground, which could distort the results. In order to known the effects of ground coupling, an electric equivalent model is developed to distinguish between the contribution of the sample impedance and the stray impedance one. Model values agree with measured ones.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures -Electrical impedance tomography -Ceramic materials -Electrical impedance spectroscopy -galvanic insulation -Impedància (Electricitat) -Materials ceràmics
Rights:	Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article
Published by:	Institute of Physics
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