Influence of AC external magnetic field perturbation on trapped magnetic field in HTS bulk

J. Ogawa, M. Iwamoto, K. Yamagishi, O. Tsukamoto, M. Murakami, M. Tomita

研究成果: Conference article査読

50 被引用数 (Scopus)

抄録

Electric motors and actuators are most promising future applications of HTS bulks. The HTS bulks in these electric machines are exposed to AC magnetic field perturbations. The perturbations cause AC losses in the bulks and also affect the magnetic field trapped in the bulks. In a previous work we measured AC losses in a YBCO bulk subject to the AC magnetic field and found the loss characteristics well followed the Bean model. In this work we experimentally studied the influence of the AC perturbations of the external magnetic field on the trapped field in a YBCO bulk. The experimental results showed that the application of the AC magnetic field decreased the trapped magnetic field even to zero. In this paper, the experimental results are presented and a reason for the decay of the trapped magnetic field is discussed based on the Bean model.

本文言語English
ページ(範囲)26-30
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
386
DOI
出版ステータスPublished - 2003 4月 15
外部発表はい
イベントICMC 2002 - Xi an, China
継続期間: 2002 6月 162002 6月 20

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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