Analysis and simulation of novel hexagonal electrode Electrical Capacitance Tomography sensor

The present paper proposes a new design of 4-layer 32-electrode cylindrical Electrical Capacitance Tomography (ECT) sensor. The novelty is the proposed hexagonal shape of the electrodes, which ensures more uniform sensitivity in the imaging area. The new sensor is analyzed using Finite Element Method and its sensitivity maps are calculated. It is shown that the new sensor will provide more uniform sensitivity in the axial direction than the commonly used rectangular shape electrode sensors.