Variables:
t=Thickness (in.)
D=Diameter (in.)
H(o)=Source Field (Oersted)
H(i)=Attenuated Field (Oersted)
About the Calculator
This computes DC magnetic fields only. The field direction is transverse across the diameter of an infinitely long tube, which has been fabricated from MuMETAL® foil or sheet and Perfection Annealed for high permeability.