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 |
| 巻 | 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 16 → 2002 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