Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 350, Issue -, Pages 174-178Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2013.09.023
Keywords
Permanent magnet; Cylindrical magnet; Attraction force; Magnetostatic interaction
Funding
- Grant Agency of the Czech Republic [P107/11/0391]
- Grant MEYS [LM2011026]
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We provide formulas for evaluating the magnetic force between two permanent magnet arrays, regularly spaced over a square lattice. We focus on three basic shapes of magnets constituting the arrays: cylinder, sphere and rectangular prism. When the lattice parameter is large, the expressions can be used to calculate the force between two single magnets in a computationally efficient way. The calculations are validated experimentally by measuring the attraction force between two single permanent magnets, where we demonstrate a fair agreement within about 15%. (C) 2013 Elsevier B.V. All rights reserved.
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