Ferrite Core Inductor Software Testing

A simple test to find the magnetic permeability of an inductor core. Using an inductance meter, and a known piece of wire.

Jul 13, 2012. There is no problem as long as the noise level is within the regulation value as expected at this point, but the test results sometimes exceed the regulation value. By passing conducting wires through the hole of the ring, the conducting wires and the ferrite core form a coil (inductor). Ring cores (AKA 'toroids') are widely available in every grade of ferrite, compact, inexpensive and useful when relatively few turns are needed.

I am using Ferrite toroids as a control, For my needs I just want to know if the core is better or worse than ferrite. Hack For Mu Online 97d. I Am A Barbie Girl Song Download Free. If its better, by what kind of margin. Findings from today's testing. All the cores shown, except the dark green ones, where about half to a quarter of the premeability of ferrite. The Dark green was a clear winner.

As shown in the video. The Green cores, found with bifilar windings in computer power supply units (Usually 2 per PSU), have a premeability around 40 times that of ferrite (probably Metglas).

I also found a pale gray one, that appears to be an air core at first glance and its light weight, but stuck to a magnet, which tested at 70µH, about 4 times the premeability of ferrite. For those interested in the L/C meter. MakerJ101 does a great review on it and some of the other meters in the same price range on ebay. He also made a few nice mods, which I will replicate when I get round to it.