Three-dimensional field measurements of levitated HTS and the modeling of the shielding current

E. Ito, Y. Komano, K. Sawa, Y. Iwasa, N. Sakai, I. Hirabayashi, M. Murakami

研究成果: Conference article査読

4 被引用数 (Scopus)


We developed a shielding current distribution model in a bulk superconductor with the aim of estimating the levitation force. First, we directly measured the magnetic field in axial and radial directions above a bulk Y-Ba-Cu-O superconductor levitated by an electromagnet using a three-dimensional Hall sensor. We then calculated the field distribution by assuming two types of the shielding current distributions and compared the results with the measured values. The field distributions based on the model in that the shielding currents are flowing concentrically at the surface were not in good agreement with the measured data. We then assumed that the shielding currents are not uniform and the boundary has the form of nth hyperbola, which could reproduce the measured field distribution reasonably well.

ジャーナルPhysica C: Superconductivity and its applications
出版ステータスPublished - 2005 10月 1
イベントProceedings of the 17th International Symposium on Superconductivity (ISS 2004) Advances in Supeconductivity -
継続期間: 2004 11月 232004 11月 25

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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