Field Calculations for a Permanent Magnet Dipole

Calculates the field strength for a Steel Dipole

For a dipole, the field within the airgap may be calculated by assuming that the steel yoke has the effect of double the magnetic length of the magnet volume - the field through the airgap volume can then be determined to within respectable limits (+/- 5% or so). Better results are achieved with rare earth materials.

Enter the length of the Air gap (G) along the z-axis, together with the X, Y and Z Coordinates. For more information, please refer to the image shown above.