Field Precision software tips

In the distant past, in a time we called the 80s, there was only one input method for technical programs — the script. An input script is a text document with lines to set code options and parameters. Although infinitely superior to a stack of punch cards, people grew to hate them for several reasons:

Each program had [...]

Some users have reported intermittent plotting problems when working with large meshes (i.e., millions of elements) in the 2D and 3D programs. The reason I didn’t notice anything is that I always try to avoid large meshes. It’s almost always possible to analyze applications to employ symmetry and to eliminate unnecessary details. Furthermore, solutions with a [...]

To reduce the possibility of breakdowns, a common goal in high-voltage engineering is to minimize peak electric field values on electrodes for a given voltage. One example is the choice of conductor and shield radii for a coaxial cable. For a given shield radius ro, what choice of the conductor radius ri gives the lowest electric? [...]

In the tutorial Designing permanent-magnet solenoids with PerMag, I discussed how permanent magnets with radial magnetization could be used to generate a solenoid field. An annular magnet with pure radial magnetization is impossible to fabricate with modern high-energy-product materials. Instead, it must be approximated with a set of Ns wedge sectors, each with linear magnetization. There [...]