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Electromaglev: magnetic levitation of a superconducting disc with a direct-current field generated by electromagnets. 1. Theoretical and experimental results on operating modes, lift-to-weight ration, and suspension stiffness.

Author(s) : IWASA Y., LEE H.

Type of article: Article

Summary

The authors present the results of a comprehensive study, both theoretical and experimental, of an "Electromaglev" system, in which a high-temperature superconducting bulk sample, e.g. YBCO, is levitated stably in a direct-current magnetic field generated by electromagnets placed underneath the floating object. Results of the zeroth-order theory agree quite well with experimental results on lift-to-weight ratio and suspension stiffness for three bulk samples: 1) a solid YBCO disc; 2) a YBCO annulus; and 3) a YBCO annulus with a neodymium-iron-boron permanent magnet disc filling the centre.

Details

  • Original title: Electromaglev: magnetic levitation of a superconducting disc with a direct-current field generated by electromagnets. 1. Theoretical and experimental results on operating modes, lift-to-weight ration, and suspension stiffness.
  • Record ID : 1998-2710
  • Languages: English
  • Source: Cryogenics - vol. 37 - n. 12
  • Publication date: 1997/12

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