Abstract: Electrical Impedance Spectroscopy is a widely applied material analysis
technique which does not impair functionality nor lead to destruction. The greatest
advantage of the cost-effective method is how it assesses the chemical compound of
the material analyzed. The data acquired during the measurements are analyzed by equivalent
electric models, in which the material parameters correlate with the model parameters.
The pre-requisites for the model applied are primarily dependent upon the structure
of the analyzed material and the frequency spectrum. Based on the experiments implemented
through the considerably large number of low-frequency analyses (< 10 Hz) performed
by our research team, we have modified the Cole-Cole relaxation model to fit it as
precisely as possible to the low-frequency analyses. The present article demonstrates
the modified Cole-Cole model, and includes an experimental measurement to support
the efficacy and robustness of the self-developed analysis system and method.