Automatic 3D meshing of printed circuits

A recent trial user had an application that required creation of a three-dimensional mesh of a printed circuit. Such an object is thin in z with relatively complex spatial variations in x–y. The user attempted to represent the full complement of conductors as a single, thin STL solid object with thousands of facets. It would have […]

Modeling a cathode/focus-electrode gap with OmniTrak

High-current electron-beam guns typically have the geometry of Fig. 1. The flat or concave cathode operates in the space-charge limited mode. A shaped focusing electrode compensates for the effect of beam-generated electric fields to generate a parallel or converging beam. The heated cathode is composed of a high-temperature material like tungsten. The focusing electrode is composed […]