A Multitasking Electrical Impedance Tomography System Using Titanium Alloy Electrode.

Abdalla Salama,Rajprasad Rajkumar,Shahram Mohanna,Amin Malekmohammadi

doi:10.1155/2017/3589324

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.

Highlights

Electrical impedance tomography (EIT) is a relatively new imaging technique [1, 2]
The University of Nottingham Malaysia Campus (UNMC) electrical impedance tomography (EIT) system was evaluated, including its ability to be used in different applications by tracking and detecting conductive changes of targeted objects
A titanium alloy electrode with an active contact area of 13 × 13 × 0.5 mm3 was employed for the 280 mm high vessel, and a 14 × 14 × 0.5 mm3 electrode was used for the 50 mm high tank

Summary

Introduction

Electrical impedance tomography (EIT) is a relatively new imaging technique [1, 2]. Developed to overcome some of the disadvantages of existing imaging techniques, it provides flexibility, radiation-free operation, and noninvasive imaging ability and is relatively inexpensive [3,4,5,6,7,8,9,10,11,12,13]. The EIT system operates using low-power signal injection and measurements to reconstruct the estimated cross-section image [5]. It works by detecting and tracking the electrical conductivity changes hidden in a medium such as a pipeline, human body parts, or chemical process [4, 14,15,16,17,18,19]. Pure titanium does not have good electrical conductivity, but titanium alloy is a good conductor

Methods

Results

Conclusion