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Effect of n-value on third harmonic voltage method analyzed by finite element method
http://hdl.handle.net/10228/2464
http://hdl.handle.net/10228/2464d7f59898-570c-4da1-8903-507e960fdab0
| 名前 / ファイル | ライセンス | アクション |
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Effect of n-value.pdf (299.1 kB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||
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| 公開日 | 2009-08-05 | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Effect of n-value on third harmonic voltage method analyzed by finite element method | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Yoshida, T
× Yoshida, T× 小田部, エドモンド 荘司
WEKO
572
× 松下, 照男× Okamoto, H |
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | To investigate the correctness of the estimation of the critical current density Jc in high-Tc superconductor by third harmonic voltage measurement method, the third harmonic voltage V3 and the distributions of magnetic flux and current in a superconducting film with various n-values are calculated by FEM using the n-value model. When the AC current I0cosωt is applied to a coil, the threshold coil current Ith, which is proportional to Jc in the film, is determined by so-called off-set method for V3/I0–I0 curve which is frequently used in the four terminal method. The calculated value of Ith is slightly smaller than that of theoretical value by Bean’s model. When the coil current I0 is smaller than Ith, although the current density distribution is almost uniformly distributed as predicted by Bean’s model, the value of current density is smaller than Jc. This behavior is different from the prediction of Bean’s model. It is found that the current density is uniform and is equal to Jc for high n-value when I0 is closed to Ith. Therefore, it seems to be reasonable to estimate Jc by Ith in the above method for superconducting films with n-value higher than 20. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Physica C: Superconductivity and its Applications 巻 468, 号 15-20, p. 1679-1684, 発行日 2008-09-15 |
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| 出版社 | ||||||||||||||
| 出版者 | Elsevier | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.physc.2008.05.204 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0921-4534 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1873-2143 | |||||||||||||
| 著作権関連情報 | ||||||||||||||
| 権利情報 | Copyright © 2008 Elsevier B.V. All rights reserved. | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Third harmonic voltage | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | FEM | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | n-value | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
| 査読の有無 | ||||||||||||||
| 値 | yes | |||||||||||||
| 業績ID | ||||||||||||||
| 値 | 5F3037018F569A8049257600002C4CDC | |||||||||||||
