Influence of high frequency AC magnetic field on trapped magnetic field

Jun Ogawa; Satoshi Fukui; Tetsuo Oka; Mitsugi Yamaguchi; Takao Sato; Mamoru Takada; Ryuichi Sato; Masaru Tomita

doi:10.1109/TASC.2007.899000

Influence of high frequency AC magnetic field on trapped magnetic field

Jun Ogawa, Satoshi Fukui, Tetsuo Oka, Mitsugi Yamaguchi, Takao Sato, Mamoru Takada, Ryuichi Sato, Masaru Tomita

研究成果: Article › 査読

7 被引用数 (Scopus)

抄録

The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.

本文言語	English
ページ（範囲）	3024-3027
ページ数	4
ジャーナル	IEEE Transactions on Applied Superconductivity
巻	17
号	2
DOI	https://doi.org/10.1109/TASC.2007.899000
出版ステータス	Published - 2007 6月
外部発表	はい

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
電子工学および電気工学

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10.1109/TASC.2007.899000

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abstract = "The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.",

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AU - Ogawa, Jun

AU - Fukui, Satoshi

AU - Oka, Tetsuo

AU - Yamaguchi, Mitsugi

AU - Sato, Takao

AU - Takada, Mamoru

AU - Sato, Ryuichi

AU - Tomita, Masaru

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AB - The trapped magnetic field in an HTS bulk is decayed and even erased by the application of an AC magnetic field whose amplitude is much smaller than the maximum trapped magnetic field. In previous experiments, the decay of the trapped magnetic field was shown to be due to the temperature rise of the bulk caused by the AC losses. Especially, in a high frequency magnetic field, AC losses are larger and the decay of the trapped magnetic field is accelerated by this AC loss increase. We investigated the time relationships of the AC loss of the HTS bulk in a high frequency magnetic field using the thermal equilibrium equation.

KW - AC loss

KW - Bulk temperature

KW - HTS bulk

KW - Thermal equilibrium equation

KW - Trapped magnetic field

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Influence of high frequency AC magnetic field on trapped magnetic field

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