Conductivity Distribution Measurement at Different Low Frequencies Using a Modular 64 Electrode Electrical Impedance Tomography System

Electrical Impedance Tomography (EIT) is a technique that is widely spread in applications in biomedical engineering. The purpose of EIT is to use a sinusoidal current rather than the traditional methods of tomography where radiation or ultrasound waves are used. In this work, a system architecture using 64-electrodes applied to a circular liquid setup is implemented as well as a test circuitry to verify the system operation. Moreover, measurements are taken at a low-frequency range and their results are presented and compared.