Amplitude-Frequency Effect of Mixed Electric Field on Impedance Spectrum Parameters of Biological Tissue

Abstract

This work analyzes the electric impedance spectra of liver samples. Nyquist diagrams of experimental samples of different sizes were constructed. Optimal model equivalent electrical circuits of the systems studied were obtained and processed, and the parameters of their components were calculated. Changes in parameters and the tangent of the loss angle were shown. A conclusion was made about the interdependence of the electric field strength and the occurrence of stress, caused by using certain frequencies, on the size of the sample.