Simulation analysis of sensitivity for electrical capacitance tomography

Electrical capacitance tomography (ECT) is a process of image-based detection techniques, with good real-time, non-invasive, low-cost advantages, applicable to multiphase flow testing, has begun to be introduced into the measurement of two-phase flow. It can be the reconstruction of two-phase flows through the pipeline in its cross-sectional surface of the phase distribution of the image. The prerequisite is to be sensitive to the distribution market. In this paper, a capacitance sensor mathematical description, the establishment of a capacitance-sensitive field distribution in the mathematical model and its finite element model, introduce a sensitive method of calculation, and then use the finite element method to study electric field potential distribution-sensitive rule. The simulation results confirmed that: the sensitivity distribution function by the media distribution.