Modeling of TV tube electronic optical system

Abstract

Using finite element method, model of design of electronic optical system was made. Libraries of electronic optical system components and presumable electron trajectories were made. Analysis of finite element mesh creation was completed and finite element mesh spacing was determined in the zones of presumable electron trajectories. There are presented analysis of different electron trajectories in electric, magnetic and electromagnetic fields calculation methods, on purpose to determine accuracy and calculation terms. Three methods are analyzed: coordinate method, time method and step method. Electron gun electron trajectories calculation and visualization program is created using MATLAB. There is presented electric field analytical model: electrical field potential is approximated using power polynomial and polynomial coefficients are interpolated by spline junctions. Electric field linearity feature is used to reduce calculation term. 5D interpolation is used in order to reduce calculation term