International Journal of Innovation and Scientific Research
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Performance Analysis of AC-DC Electrical Capacitance Tomography

Volume 25, Issue 2, July 2016, Pages 540–544

 Performance Analysis of AC-DC Electrical Capacitance Tomography

K. Manikandan and S. Sathiyamoorthy

Original language: English

Received 13 March 2016

Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The electrical capacitance tomography (ECT) is a method to determine the material distribution within the interior of a closed object by measuring the capacitance value across externally mounted electrodes. This paper investigates the electrical capacitance tomography measure up to performance of triangle wave (AC) and charge-discharge (DC) methods. AC-DC based method applying voltage to the ECT sensor with different time. An excitation signal is applied to a pair of electrodes that forms a capacitor during each measurement step in order to determine the capacitance from the output current measured. When the voltages is applied to the pair of electrodes, the analyzing charging and discharging time and quality of the output signal. The betterment of the ECT system need to avoid stray capacitance then increase speed to switching combinational electrodes. This paper presents finally, the output voltages are also convert into images by using MAT Lab.

Author Keywords: Electrical Capacitance Tomography, Triangle wave method, charge-discharge method, MAT lab, AC-DC signal.

How to Cite this Article

K. Manikandan and S. Sathiyamoorthy, “Performance Analysis of AC-DC Electrical Capacitance Tomography,” International Journal of Innovation and Scientific Research, vol. 25, no. 2, pp. 540–544, July 2016.