Research question about magnetic properties of iron

AI Thread Summary
Finding the permeability of iron at 10 kHz can be challenging, as most available data starts at 30 kHz. It is suggested to look at the 30 kHz and DC values, and if they are similar, linear interpolation may provide an estimate for 10 kHz. For more accurate information, consulting manufacturers' catalogs that include graphs of permeability versus frequency is recommended. The 10 kHz value is likely to be close to the 30 kHz value, making it potentially usable. This approach can help in addressing the research question effectively.
jparr007
Messages
1
Reaction score
0
Hello, I have recently been tasked with finding the permeability of iron at a frequency of 10 kHz. I have never done research before, this is my first time, I been looking all over the internet (IEEE, elsevier, ScienceDirect, etc...) for anything that might give me information on the subject. The lowest frequency I could find was at 30 kHz no less than that. I had never posted on a physics forum before, if I posted too much useless information or talked too much I am sorry. I do not know who to turn to for this research question.
 
Physics news on Phys.org
jparr007 said:
Hello, I have recently been tasked with finding the permeability of iron at a frequency of 10 kHz. I have never done research before, this is my first time, I been looking all over the internet (IEEE, elsevier, ScienceDirect, etc...) for anything that might give me information on the subject. The lowest frequency I could find was at 30 kHz no less than that. I had never posted on a physics forum before, if I posted too much useless information or talked too much I am sorry. I do not know who to turn to for this research question.

You're fine.

Look at the values for 30KHz and the DC values. If they're close, try linear interpolation to get to the 10KHz value. If they're not close, keep looking on the internet. Your best source will be someplace that manufactures the material. They will probably have a graph of mu vs frequency in a catalog. The DC values should be available there.

p.s. The 10KHz value is probably very close to the 30KHz value. You can probably use it.
 
Last edited:
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'
So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
Back
Top