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I come here after a lot (I mean a lot) of research about complex permeability. I have a ferrite datasheet which give the complex permeability ($\mu'$ and $\mu''$) over frequency. I don't know how to go from the complex permeability to the $B$-$H$ curve, which turns out to be a ellipse.

How can the complex permeability be represented in the $B$-$H$ plane? It will be helpful for the loss calculation. I don't know why there is not a lot of information about this subject. So a little help will be welcome.

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  • $\begingroup$ I'm not an expert in magnetic materials, but my understanding is that the phenomena of complex permability and hysteresis are independent of each other. That may be why you're unable to find any literature on how they're connected. $\endgroup$
    – Michael Seifert
    Commented Nov 7, 2022 at 15:13
  • $\begingroup$ thank you for your answer. there is a link of the two. It's dependent if you take or not hysteresis into account. You can see in this paper researchgate.net/publication/… $\endgroup$
    – physicquestionner
    Commented Nov 7, 2022 at 15:20
  • $\begingroup$ comsol.com/blogs/…. may be useful $\endgroup$
    – Jon Custer
    Commented Nov 7, 2022 at 15:47
  • $\begingroup$ nde-ed.org/Physics/Magnetism/HysteresisLoop.xhtml as well $\endgroup$
    – Jon Custer
    Commented Nov 7, 2022 at 15:47
  • $\begingroup$ Could you elaborate what you mean by "complex permeability be represented in the B-H plane". What else do you expect to see besides various ellipses centered at the static operating point and whose shape and orientation would depend on frequency? $\endgroup$
    – hyportnex
    Commented Nov 7, 2022 at 18:26

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