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2024年4月16日发(作者：好研网登录博客)
ANSOFT MAXWELL 2D/3D
FIELD CALCULATOR
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Examples-
Introduction
This manual is intended as an addendum to the on-line documentation regarding Post-
processing in general and the Field Calculator in particular. The Field Calculator can be
used for a variety of tasks, however its primary use is to extend the post-processing
capabilities within Maxwell beyond the calculation / plotting of the main field quantities.
The Field Calculator makes it possible to operate with primary vector fields (such as H, B,
J, etc) using vector algebra and calculus operations in a way that is both mathematically
correct and meaningful from a Maxwell’s equations perspective.
The Field Calculator can also operate with geometry quantities for three basic purposes:
- plot field quantities (or derived quantities) onto geometric entities;
- perform integration (line, surface, volume) of quantities over specified geometric
entities;
- export field results in a user specified box or at a user specified set of locations
(points).
Another important feature of the (field) calculator is that it can be fully macro driven. All
operations that can be performed in the calculator have a corresponding “image” in one
or more lines of macro language code. Post-processing macros are widely used for
repetitive post-processing operations, for support purposes and in cases where
Optimetrics is used and post-processing macros provide some quantity required in the
optimization / parameterization process.
This document describes the mechanics of the tools as well as the “softer” side of it as
well. So, apart from describing the structure of the interface this document will show
examples of how to use the calculator to perform many of the post-processing operations
encountered in practical, day to day engineering activity using Maxwell. Examples are
grouped according to the type of solution. Keep in mind that most of the examples can be
easily transposed into similar operations performed with solutions of different physical
nature. Also most of the described examples have easy to find 2D versions.
1. Description of the interface
The interface is shown in Fig. I1. It is structured such that it contains a stack which holds
the quantity of interest in stack registers. A number of operations are intended to allow
the user to manipulate the contents of the stack or change the order of quantities being
hold in stack registers. The description of the functionality of the stack manipulation
buttons (and of the corresponding stack commands) is presented below:
- Push repeats the contents of the top stack register so that after the operation the two
top lines contain identical information;
- Pop deletes the last entry from the stack (deletes the top of the stack);
- RlDn (roll down) is a “circular” move that makes the contents of the stacks slide
down one line with the bottom of the stack advancing to the top;
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