Finite element analysis on electrical capacitance sensor guard

Abstract

Electrical Capacitance Tomography (ECT) is widely used for multiphase flow measuring and monitoring purposes. In this paper, a customized sensor electrode is introduced for ECT system. This sensor has an embedded guard using flexible FR4 copper plate which makes it advantage over the conventional type of design in terms of smaller in size, easy to attach on pipe circumference and has lower noise. To investigate the behaviour of the sensor guard, a Finite Element Method (FEM) using COMSOL Multiphysics software comes necessary. An emulated experiment is carried out to solve the sophisticated numerical studies to model the customized ECT sensor and its embedded noise guards.