Journal of Superconductivity and Novel Magnetism

, Volume 27, Issue 12, pp 2773–2778 | Cite as

The Stable Magnetic Levitation of a Cylindrical Ferromagnetic Object

  • Caili Li
  • Liangqing Li
Original Paper


This paper introduces a control method using a ring magnet for the stable levitation of a cylindrical ferromagnetic object. The levitation has a strong stability with anti-disturbance abilities, and weight can be placed on the floating magnet. The magnetic field created by the ring magnet provides stabilities in 3 degrees of freedom of the floating magnet, and a feedback control in the horizontal plane is introduced to the control system. Analytical calculation and experiments have been done to prove the feasibility of this control method.


Magnetic levitation Ring magnet Stability Coulombian approach 


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Beijing Institute of TechnologyBeijingChina
  2. 2.HCNT TechnologyZhaoqingChina

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