In LTspice you can construct a simulation and use behavioral sources to measure quantities that depend on other things. For example, you can certainly model non-linear inductors in this fashion.
It’s not freeI couldn't download the suggested ebook
Do you mean how to measure the three parameters, Bs, Br and Hc, of a real non-linear inductor is explained on that ebook?
Thank you anyway.
The book is only free if you have an unlimited kindle subscription. I don't have that, and I purchased the paperback copy. It does indeed show you how to model, simulate, and use nonlinear inductors. There are some videos that cover portions of the material. The book and the videos also have a number of python scripts that are useful in analyzing materials that you might use to construct a variety of inductors and transformers., as well as an interesting method of digitizing curves from datasheets. I certainly thought it was worth the money from a purely academic point of view.I couldn't download the suggested ebook
Do you mean how to measure the three parameters, Bs, Br and Hc, of a real non-linear inductor is explained on that ebook?
Thank you anyway.
It’s not free
The book is only free if you have an unlimited kindle subscription. I don't have that, and I purchased the paperback copy. It does indeed show you how to model, simulate, and use nonlinear inductors. There are some videos that cover portions of the material. The book and the videos also have a number of python scripts that are useful in analyzing materials that you might use to construct a variety of inductors and transformers., as well as an interesting method of digitizing curves from datasheets. I certainly thought it was worth the money from a purely academic point of view.
You can do engineering on the cheap if you have the requisite intellectual capacity for that work. I prefer to stand on the shoulders of giants at a small incremental cost even though I am a retired senior citizen on a fixed income.
This doesn't surprise me. I understand that there is no way for you to hear about them.I'm not sure what regulations you might be speaking of.
Our internet server is relatively slow to watch videos.Were you able to access the video link I mentioned in post #5? There are about a dozen of them in the entire series.
I believe it is wrong, since the simulation and the python scripts are intended to allow the measurement and display of those quantities. While not specifically addressing iron cores they do a fine job on ferrite cores which are certainly similar. More importantly they describe how to use behavioral sources to simulate and measure nonlinear components. You are free to believe whatever you want to believe. It is a matter of little concern to me.
I have never tried this but Inductive impedance may be measured in a bridge with a reference value or compared to resistance with equal AC voltage drops and shared current.
- Measure the inductance of the coil:
- Apply a magnetic field to the inductor by passing a DC current through the coil. The current can be gradually increased until the magnetic field saturates the iron core. The plateau voltage is proportional to the saturation flux density (Bs).
- (Br): the scope can be used to measure the voltage across the coil as the magnetic field decays to zero. The voltage measured at zero magnetic field is proportional to the remanent flux density (Br).
- Measure the coercive force (Hc): The coercive force (Hc) is the amount of magnetic field strength required to demagnetize the iron core after saturating the iron, the magnetic field can be gradually decreased until the core is fully demagnetized. The voltage across the coil can be measured using a scope during this process is proportional to the coercive force (Hc).
Bye the bye you can get almost any information free on the internet with a few clues like Google Scholar, archive.org books with expired patents, regulations for free in India and of course 1337x site and the darkweb that I have never tried.
KODI is widespread globally but STREMIO is easier to use. I don't need a VPN in Canada or where you are, but one does need to save a download if your bandwidth is slow. Other media does not need hiding or a pass thru a paywallOn the other hand, I don't believe there is a real free offer (information or else) unless it is among real friends or perhaps between parents and their beloved children. At best, some programs in progress, for example, could be offered for free as a way to discover their bugs faster (there are other reasons and other examples, but it is better not to enter such forests).
Anyway, you won't see me complaining about anything (I may just present facts, I lived, nothing more). I simply let 'the dead bury their dead'.
KODI is widespread globally but STREMIO is easier to use. I don't need a VPN in Canada or where you are, but one does need to save a download if your bandwidth is slow. Other media does not need hiding or a pass thru a paywall
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