Simple and approximate expressions of demagnetizing factors of uniformly magnetized rectangular rod and cylinder

DOI PDF 被引用文献16件
  • M. Sato
    Department of Electronics and Information Engineering, Hokkai-Gakuen University, W-11, S-26, Chuo-ku, Sapporo 064, Japan
  • Y. Ishii
    Department of Electrical Engineering, Hakodate Technical College, Hakodate 042, Japan

書誌事項

公開日
1989-07-15
DOI
  • 10.1063/1.343481
公開者
AIP Publishing

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説明

<jats:p>Demagnetizing factors of the rectangular rod and cylinder magnetized uniformly along the long axis are found to be expressed by the simple and approximate expressions 1/(2n+1) and 1/[2(2n/(π)1/2) +1], respectively, where n is the dimensional ratio. The error which is the difference of the value evaluated by 1/(2n+1) from the value evaluated by the exact expression of the demagnetizing factor is less than 5.48% for the rectangular rod with n&lt;70. The error of the value evaluated by the expression 1/[2(2n/(π)1/2) +1] for the cylinder is also found to be less than 4.25% for n&lt;100.</jats:p>

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