A new type of active-maglev system using YBCO bulk and multiple electromagnets

H. Ueda, H. Hayashi, A. Ishiyama*, M. Tsuda


研究成果: Article査読

5 被引用数 (Scopus)


We present a new type of active-maglev system consisting of high-temperature superconducting bulk and multiple electromagnets. A prototype of the new active-maglev system composed of two solenoid type electromagnets located on the same axis was designed. Each electromagnet was operated individually; only the lower electromagnet had been operated until the bulk reached a certain level and then the upper electromagnet was started to operate with a constant current of the lower electromagnet. Lift and levitation height were investigated experimentally as functions of (1) the magnitude of trapped field; (2) the gap between the lower and upper electromagnets; and (3) the levitation height at which the upper electromagnet is started to operate. Independent of these parameters, ’continuous levitation’ in the axial direction was achieved in the new active-maglev system. Electromagnetic behavior within the bulk was also investigated numerically by the finite element method, i.e. axial symmetry field analysis, using the magnetic vector potential. The experimental and computed results imply that levitation height can be remarkably improved by the continuous levitation using multiple electromagnets.

ジャーナルPhysica C: Superconductivity and its applications
出版ステータスPublished - 2001

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学


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