Dynamic Resistance Measurements in a GdBCO-Coated Conductor
Dynamic Resistance Measurements in a GdBCO-Coated Conductor
复制标题
GdBCO 涂层导体中的动态电阻测量
DOI：
10.1109/tasc.2016.2644107
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发表时间：
2017
影响因子：
1.8
通讯作者：
N. Long
中科院分区：
文献类型：
--
作者：
Zhenan Jiang;R. Toyomoto;N. Amemiya;C. Bumby;R. Badcock;N. Long
动态电阻是当超导导线在经历交变磁场时携带直流输运电流时发生的现象。这种情况发生在一系列高温超导机械应用中，其中动态电阻可能导致大的寄生热负荷和潜在的淬火事件。在这里，我们提出了一个5毫米宽的Fujikura涂层导体线在77 K下的动态电阻测量。我们报告了通过改变场角（磁场与导体宽面法向量之间的角度），直流电流水平以及磁场幅度和频率获得的实验值。我们证明了垂直磁场中的动态电阻可以用一个简单的解析方程来预测。我们还表明，在这里测量的场角范围内，动态电阻由外加磁场的垂直分量支配。
Dynamic resistance is a phenomenon which occurs when a superconducting wire carries dc transport current whilst experiencing an alternating magnetic field. This situation occurs in a range of HTS machinery applications, where dynamic resistance can lead to large parasitic heat loads and potential quench events. Here, we present dynamic resistance measurements of a 5-mm-wide Fujikura coated conductor wire at 77 K. We report experimental values obtain through varying the field angle (the angle between magnetic field and normal vector of the conductor wide-face), the dc current levels, and the magnetic field amplitude, and frequency. We show that the dynamic resistance in perpendicular magnetic field can be predicted by using a simple analytical equation. We also show that across the range of field angles measured here the dynamic resistance is dominated by the perpendicular component of the applied magnetic field.
IBA-PLD技术制备YBCO超导带材的交流损耗特性
DOI：
--
发表时间：
2004
期刊：
Physica C Vols.412-414
影响因子：
--
作者：
H.Miyazaki;M.Iwakuma;et al.;M.Iwakuma et al.
通讯作者：
M.Iwakuma et al.