Is there a simple empiric way of determining the permeability (mhu) of a ferrite object (be it a ring, rod or any form)?
I've been thinking this for a rod: if I wind coils with different number of turns (same wire, just wind or unwind it) and measure the inductance, then given the number of turns, diameter of the rod and "height" of the coil I would be able to determine the permeability. I tried a couple of times but I'm getting inconsistent results. My LCR meter can measure only upwards of 0,01mH (or 10uH). Is the meter the culprit or is my method flawed?