Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Seeking magnetic induction software recommendation

Seeking magnetic induction software recommendation

Seeking magnetic induction software recommendation

Hello all!

I am looking for a software that would allow me to simulate/compute induced AC voltage in a coil. VIZ:

A coil of n=100 turns with a centerline diameter d of approximately 6”.

At the bottom of this coil there is a magnetic circuit around that part of the coil with inside/outside diameters Di & Do, width w, perm/saturation as knowns that allow a sinusoidal flux to flow in the magnetic circuit at low to medium frequencies.

I would like to configure the software so that I could modify the variables relatively quickly to develop a feel (education) of how these factors interplay as well as what induced voltage is produced.

Given that this is a non-commercial self-training process, open source or under $500 cost software is needed. Software designed to be subscription-licensed across a phalanx of engineers at Mega-Company HQ isn’t an economic option for this bootstrapping/learning process

For those of you that have experience with using mag software(s), what packages would you recommend to put this together in a sensible learning curve time?

All comments, out-of-the-box ideas and suggestions welcome!!!


RE: Seeking magnetic induction software recommendation

I made an FAQ for this:

It is a bit dated but the link to FEMM is still valid and I recommend you start there, and utilize the examples provided. They have a large support group too.

RE: Seeking magnetic induction software recommendation


You have compiled a broad and valuable resource there. It will be a big help!

I am in your debt…

Best regards,

RE: Seeking magnetic induction software recommendation

Mike or Others,

Elementary question.

I see a number of 2D packages that essentially develop a single plane of a magnetic circuit.

I wish to calculate a flux density at some point in the structure, but the model has no information that the magnetic conductor is an eighth of an inch deep or 5 inches.

I am missing some assumption or there is a big hole in my understanding. Digging around on the net this morning didn’t turn up any resolution to help my understanding of how you sim a real world magnetism conductor or a simple magnet with only 2D information.

Appreciate anyone that can help me see how to get past this wall.


RE: Seeking magnetic induction software recommendation


You're jumping a little too deep at this point. I recommend using the following FEMM example/tutorial, it'll help:
There are many, many other examples available on the FEMM Wiki. I recommend going through a number of them. They'll teach you the quirks of the software as well as deepen your understanding of magnetics.

In your original post, you described a cylindrical geometry. That is typically modeled as rotationally symmetric and FEMM is very well suited for that. Your latest post describes a 2D geometry. Going to non-cylindrical geometries involves some trade-offs, but it's best to get comfortable with rotationally symmetric models first.

RE: Seeking magnetic induction software recommendation


Will follow your suggestion. Thanks for your direction to line me up on a workable approach. Let’s see if I can backfill what I am missing.

Best regards,

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close