FAQ #30: Can the Bode 100 measure complex permeability of Inductors/Chokes with some additional adap
It can measure impedance and that can get you there. We measure permeability by relating the inductance and physical core parameters such as core and turns ratio. All magnetics testers work this way, requiring physical parameters.
The relationship, shown below shows the inductance and relationship to turns (N), core Area (A) and path length (lm).
You can see we can solve this for “u” if everything else is known, including the inductance and the physical parameters.
Some oscilloscope power applications can also do this and also require the same terms.