PC Micromagnetics Simulator Release Beta 2.0

The PC Micromagnetic Simulator (SimulMag) is a personal computer based magnetic design tool developed by John Oti while he was in the Electromagnetic Technology Division of EEEL/NIST. This software is no longer being developed or supported at NIST, and is provided "as is."

These pages are based on earlier pages written by John Oti.


Brief introduction to the software

The simulator allows one to construct a magnetic device or circuit and simulate the system response under the influence of external magnetic fields, currents, or local field sources. The program is expected to be most useful as an effective tool in the development of initial device design concepts and their rapid iterative analyses before rigorous modeling is attempted. The software may also have potential pedagogical uses for classroom instruction of micromagnetics.

The software requires Windows 95 or Windows NT 3.51 or higher to run.

Available on this web site are beta versions of the micromagnetics simulator (Simulmag v2.0j) and the design viewer program (MMS Viewer v2.0i), design file examples illustrating software features and the user's manual with addendum. Features include:



Navigating this site

Using the following links you will be able to obtain copies of the simulator program, a simulation viewer program (MMS Viewer), the user's manual, design examples and answers to commonly asked questions concerning the software. The viewer program automatically plays back recorded simulations and permits viewing and saving to file of all simulation data. When installed the viewer is much smaller than the simulator program and can be used as a plug-in in your web browser for convenient online viewing of design examples. This will enable you to readily evaluate the capabilities of the software before embarking on your own designs with the simulator. The system requirements for the viewer program are the same as for the simulator.


DISCLAIMER: The calculated results do not necessarily describe what would be realized from an actual experimental measurement. All magnetic simulators perform idealized calculations and cannot necessarily describe effects resulting from fine details inherently present in real magnetic samples. This program is based on a relatively simple single-domain model for speed of calculation. Other techniques may produce different results. Interested users are invited to review the information of the NIST muMAG activity.

Commercial equipment and software referred to on these pages are identified for informational purposes only, and does not imply recommendation of or endorsement by the National Institute of Standards and Technology, nor does it imply that the products so identified are necessarily the best available for the purpose.


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Date created: February 10, 1999 | Last updated: April 27, 2011    Contact: Webmaster