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Function
Two-dimensional RF and AC magnetic fields in materials with eddy
currents
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Description
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Nelson is a versatile numerical tool to find RF and
AC magnetic fields in conductive media for complex cylindrical or
rectangular geometries. The program applies finite-element methods on
a variable-resolution conformal triangular mesh. You can define up to
127 regions to represent coils or different materials. The amplitude
and phase of the harmonic coil currents or vector potential on
surfaces can be set individually. Conductive materials are
characterized by values of the volume resistivity and relative
magnetic permeability. NView, an interactive graphics analysis
program provides full information on the amplitude and phase of the
magnetic field, eddy currents and other derived quantities throughout
the solution regions. The program makes screen and hardcopy plots of
magnetic field lines and colored screen plots of electric field and
resistive energy deposition. The frequency-domain solutions of
Nelson are limited to linear materials and excitation at a single
frequency. The time-domain Pulse code
calculates magnetic fields for non-linear magnetic materials with
arbitrary drive current waveforms. (Available for 32- and 64-bit
Windows.)
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Features
 Define up to 127 regions with different conductivity and magnetic permeability. Assign phase and amplitude of multiple drive currents.
Extensive plot options include magnetic field lines and color-coded element plots of magnetic field, induced electric field, current density and power density.
Easy-to-understand
instruction manual with ready-to-run examples.
Automatic integrals of field energy, peak fields and total power dissipation organized by regions.
Interactive point-and-
click analysis of solutions.
Formatted text output
files make it easy to transfer information to user applications or to
mathematical analysis programs.
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