Improving Magnet Designs With High and Low Field Regions

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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A general scheme for increasing the difference in magnetic flux density between a high and a low magnetic field region by removing unnecessary magnet material is presented. This is important in, e.g., magnetic refrigeration where magnet arrays have to deliver high field regions in close proximity to low field regions. Also, a general way to replace magnet material with a high permeability soft magnetic material where appropriate is discussed. As an example, these schemes are applied to a two dimensional concentric Halbach cylinder design resulting in a reduction of the amount of magnet material used by 42% while increasing the difference in flux density between a high and a low field region by 45%.
Original languageEnglish
JournalI E E E Transactions on Magnetics
Publication date2011
Volume47
Issue6
Pages1687-1692
ISSN0018-9464
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 5

Keywords

  • Magnetic refrigeration
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