To eliminate dependence on the number of turns in a test coil, the inductance values on an impedance diagram are:

In order to eliminate dependence on the number of turns in a test coil in electromagnetic testing, it is essential to normalize the inductance values on the impedance diagram. Normalization means expressing the inductance values relative to a standard or base value, which allows for a consistent comparison that is independent of variations due to coil turns. This approach is particularly useful in non-destructive testing where testing conditions and coil configurations may vary.

By normalizing the inductance, the analysis focuses on the intrinsic properties of the material being tested rather than the configuration of the test setup. This ensures that the results are attributable to the material characteristics and not to variations in coil design, thus supporting more accurate assessments and interpretations in electromagnetic testing.