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Permeability data of Powder cores

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kanmaedexandzelbladex

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Hello everyone,

I am interested in determining the maximum magnetic flux that is entering my core in its steady-state operation. It seems that for the calculation, I need the permeability of my core. The problem that I have is that I am not so sure of what the permeability data in datasheets are. For instance in this page, https://www.cwsbytemark.com/index.php?main_page=index&cPath=206_222 . You can see that the cores have permeability of 125, 60, etc. What are those? Are those relative permeabilities? A factor to be multiplied with the permeability of free space to get the actual permeability? It's the same thing here. https://www.mag-inc.com/products/powder-cores/high-flux-cores . The core permeability data are just labelled as 60 mu, 125 mu, etc. But what are those mu? I mean, what are the units?

Thanks,
Julian
 

kanmaedexandzelbladex said:
Hello everyone,

I am interested in determining the maximum magnetic flux that is entering my core in its steady-state operation. It seems that for the calculation, I need the permeability of my core. The problem that I have is that I am not so sure of what the permeability data in datasheets are. For instance in this page, https://www.cwsbytemark.com/index.php?main_page=index&cPath=206_222 . You can see that the cores have permeability of 125, 60, etc. What are those? Are those relative permeabilities? A factor to be multiplied with the permeability of free space to get the actual permeability? It's the same thing here. https://www.mag-inc.com/products/powder-cores/high-flux-cores . The core permeability data are just labelled as 60 mu, 125 mu, etc. But what are those mu? I mean, what are the units?

Thanks,
Julian
Click to expand...


Powder core materials are specified by their material property by giving initial permeability of the material like 60µ,125µ. The numbers are material initial permeability(Core permeability). The permeability has no unit. The notation µ stands just PERMEABILITY.
 
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