Experimental and theoretical study of AC losses in variable asymmetrical magnetic environments

S. T. Ranecky, H. Watanabe, J. Ogawa, T. Oka, D. Gölden, L. Alff, Y. A. Genenko

研究成果: Article査読

5 被引用数 (Scopus)


Measurements of AC losses in a HTS-tape placed in between two bulk magnetic shields of high permeability were performed by applying calorimetric techniques for various asymmetrical shielding arrangements. The experiment was supported by analytical calculations and finite-element simulations of the field and current distributions, based on the Bean model of the critical state. The simulated current and field profiles perfectly reproduce the analytic solutions known for certain shielding geometries. The evaluation of the consequent AC losses exhibits good agreement with measurements for the central position of the tape between the magnets but have increasing discrepancy when the tape is approaching the shields. This can be explained by the increasing contribution of the eddy currents and magnetic hysteresis losses in the conducting shields.

ジャーナルSuperconductor Science and Technology
出版ステータスPublished - 2017 7 6

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学


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