NDLI: The Stable Levitation of an Iron Ball over a Ring Magnet

Content Provider	Springer Nature Link
Author	Yang, W. M. Wang, M. Z.
Copyright Year	2011
Abstract	An iron ball floats in midair in a plastic tube when the plastic tube is coaxially inserted in a ring-shaped permanent magnet. A ring permanent magnet has a special paraboloidal interface around its axis, the magnetic field Bz is of negative value, and points down in the range Zlow. But it is of positive value and points up in the range Zup; it is 0 at Z0 position. The iron ball cannot be stable levitated over the ring magnet no matter it is in the Zlow or Zup regions; it is only possible to realize the stable levitation of the iron ball at Z0 position. Theoretical calculation and experiment have been done and identified the stable levitation of an iron ball over a ring magnet. It is helpful to design and develop new magnetic levitation system for practical applications.
Starting Page	421
Ending Page	425
Page Count	5
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	25
Issue Number	2
e-ISSN	15571947
Language	English
Publisher	Springer US
Publisher Date	2011-09-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Iron ball Ring magnet Magnetic interaction Levitation Condensed Matter Physics Magnetism, Magnetic Materials Strongly Correlated Systems, Superconductivity Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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The Stable Levitation of an Iron Ball over a Ring Magnet