Region	Core material and relative permeability		Analytic calculation
Region	1018 Steel, µ_r = 529	M-36 Steel, µ_r = 1,616	Analytic calculation
Stator	953	389	0
Right gap	476,226	584,362	666,250
Armature	837	342	0
Left gap	490,770	599,013	666,250