Transport Current AC Losses of High-Tc Superconducting Tapes Exposed to AC Magnetic Field
Transport Current AC Losses of High-Tc Superconducting Tapes Exposed to AC Magnetic Field
复制标题
暴露于交流磁场的高温超导带材的传输电流交流损耗
DOI：
10.1007/978-1-4757-9056-6_95
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
K. Hayashi
中科院分区：
文献类型：
--
作者：
S. Fukui;Y. Kitoh;T. Numata;O. Tsukamoto;J. Fujikami;K. Hayashi
本文提出了一种新的测量方法，用于测量多带组合导体中相邻带受外磁场作用下高tc超导带的输运电流交流损耗。本文指出，要正确测量胶带的交流损耗，电压测量环路应包括远大于胶带宽度的距离上的磁通。然而，这种宽电压环路需要宽空间，并且在多个磁带组装时拾取相邻磁带造成的杂散损耗。在我们的安排中，从胶带上的电压抽头引出的引线绕在包围胶带的圆柱形表面上。这种方法既节省了电压引线的空间，又避免了由另一带的磁场引起的杂散损耗分量。本文详细介绍了我们的测量方法，并通过理论分析、数值分析和实验验证了我们方法的有效性。结果表明，该方法是有效的。
A new measurement method is developed to properly measure transport current AC losses of high-Tc superconducting tapes which are subject to external magnetic field generated by adjacent tapes in multiple tapes assembled conductor. It has been pointed out that to correctly measure the AC losses of the tape, the voltage measurement loop should include the magnetic flux over a distance much larger than the tape width. However, this wide voltage loop needs wide space and picks up spurious loss caused by adjacent tapes when multiple tapes are assembled. In our arrangement, the leads from voltage taps on the tape are wound on a cylindrical surface enclosing the tape. This method can save space for voltage leads and avoid spurious loss component caused by the magnetic field of the other tape. In the paper, details of our measurement arrangement are explained and the validity of our method is investigated by theoretical and numerical analyses and an experiment. It is demonstrated that our method is effective.