material for the magnetizing yoke. The coil turns were the same
as in the magnetizing yokes used in the experiment and the test
objects were also the same as in the experiments. Fig. 2(b) shows
the magnetizing curve for each material used in the analysis.
Apart from the magnetizing curve of the type A standard test
shim, the magnetizing curves for each material were based on
actual measurements obtained using toroidal coils. The magne-
tizing curve of pure iron was used as the magnetizing curve of the
type A standard test shim.