Abstract
Based on the theory of molecular current hypothesis, the model of the magnetic flux intensity at a point around the cylindrical magnet is established, and a numeric method for the solution of the model is proposed. Compared with the dipole model, this method doesn't need the precondition that the distance from the magnet to the evaluation point is much larger than the maximum dimension of the magnet. At the same time, a group of the parametric values and experiment results are illustrated.
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