English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 49064/83170 (59%)
造訪人次 : 6962178      線上人數 : 41
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27584

    題名: Levitation force measurement at different temperatures for YBCO superconductor
    作者: 陳偉正;Chan, Wai-ching
    貢獻者: 淡江大學物理學系
    日期: 2003-05
    上傳時間: 2009-12-31 10:27:23 (UTC+8)
    出版者: Springer
    摘要: Magnetic levitation force measurements for high Tc superconductors usually perform with the use of liquid nitrogen. It is both convenient and cheap. However, the temperature of the sample cannot be changed (77 K) and there is problem of frost. So, it is necessary to build another type of system to measure the levitation force of high Tc superconductor under different temperatures. In this study, we have transformed a close cycle cryogenic system (20–300 K), together with the use of an electronic balance, to measure the hysteretic curves of high Tc YBCO superconductor under different temperature. We also have used SQUID to measure the corresponding magnetization curves for our sample directly. From these results, we have found that the critical current density of our superconducting sample obtained from both measurements agree with each other as expected.
    關聯: Journal of low temperature physics 131(3-4), pp.743-746
    DOI: 10.1023/A:1022925419581
    顯示於類別:[物理學系暨研究所] 期刊論文


    檔案 描述 大小格式瀏覽次數



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋