A Multitasking Electrical Impedance Tomography System Using Titanium Alloy Electrode

Abstract

This paper presents a multitasking electrical impedance tomography (EIT) system designed to improve the flexibility and durability of an existing EIT system. The ability of the present EIT system to detect, locate, and reshape objects was evaluated by four different experiments. The results of the study show that the system can detect and locate an object with a diameter as small as 1.5 mm in a testing tank with a diameter of 134 mm. Moreover, the results demonstrate the ability of the current system to reconstruct an image of several dielectric object shapes. Based on the results of the experiments, the programmable EIT system can adapt the EIT system for different applications without the need to implement a new EIT system, which may help to save time and cost. The setup for all the experiments consisted of a testing tank with an attached 16-electrode array made of titanium alloy grade 2. The titanium alloy electrode was used to enhance EIT system's durability and lifespan.

The Research Progress of Electrical Impedance Tomography for Lung Monitoring

“…When selecting electrode materials, we should fully consider its conductivity, contact area, stability, and cost. At present, in order to improve the durability of the electrode, titanium alloy has been used as the electrode manufacturing material (Salama et al, 2017). In addition, the shape of the electrode can affect the uniformity of the current density distribution in the measured field.…”