Measurement of critical current in superconducting rings

被引：4
|
作者：
Gonzalez-Jorge, H. [1 ]
Linares, B.
Quelle, I.
Peleteiro, J.
Carballo, E.
Domarco, G.
机构：
[1] Lab Oficial Metroloxia Galicia, Orense, Spain
[2] Univ Vigo, Dept Fis Aplicada, Orense, Spain
来源：
MEASUREMENT | 2007年 / 40卷 / 04期
关键词：
critical current; superconducting ring; inductive device;
D O I：
10.1016/j.measurement.2006.06.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An experimental technique has been developed for the measurement of the critical current in superconducting rings. It is based on the detection of a voltage in a secondary coil when the current induced in the superconductor by a primary coil exceeds the critical value. The coils and superconductor are assembled on a ferromagnetic core to create a transformer. The technique uses a primary circuit containing a control coil with an iron core, and the primary coil of the transformer. This circuit is connected to a constant-voltage AC power supply, and the current is modified by changing the impedance of the control coil using a DC power supply. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：378 / 382
页数：5
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