Journal of Information Organization Svetlana Gerganova-Savova, DanielaToneva-Zheynova and YankoYanev 11 4 2022 https://doi.org/10.6025/jio/2021/11/4/97-101 https://www.dline.info/jio/fulltext/v11n4/jiov11n4_2.pdf To estimate the impedance, the electrical impedance spectroscopy is used in many areas and disciplines. We used the Randle’s model for presenting impedance measurement. The characteristics of the impedance systems are described further.