Refined cartesian mesh for modeling in electrical capacitance tomography

Abstract

This paper presents modeling of electric potential distribution using a refined Cartesian mesh in electrical capacitance tomography. The application of the thickened Cartesian discretization mesh in a forward problem solver allows more accurate discrete description of cylindrical elements of tomographic sensor. The irregular structured grid enables possibility to increase precision of capacitance measurement simulations. A tree structure was used for description of refined mesh nodes to obtain fast computations. The .NET based software library was created. A set of MATLAB functions was created to provide an interface between the library and the MATLAB environment. The results of electrical field computation were presented.