Characterisation of a MgB2 wire using different current pulse shapes in a pulsed magnetic field

被引:0
|
作者
Wozniak, Mariusz [1 ]
Hopkins, Simon C. [1 ]
Glowacki, Bartlomiej A. [1 ,2 ]
机构
[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
[2] Inst Power Engn, PL-02981 Warsaw, Poland
来源
PRZEGLAD ELEKTROTECHNICZNY | 2012年 / 88卷 / 08期
关键词
pulse measurements; magnesium diboride; critical current;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A pulse field - pulse current system for critical current measurements has been modified to allow control of the current pulse shape. Regression analysis of the voltage vs. current behaviour has been used to determine the critical current and n value using a specified electric field criterion from a single measurement cycle, in place of the previous qualitative approach from a series of pulses. The results for a superconducting magnesium diboride wire agree well with conventional DC measurements in a constant magnetic field.
引用
收藏
页码:29 / 31
页数:3
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