Bi2223长带临界电流不均匀性的检测  

Critical current inhomogeneity detection of long Bi2223 tapes

作　　者：张正臣[1] 孟宪东[1] 孔令启[1] 李晓航[1] 

机构地区：[1]中国科学院电工研究所

出　　处：《低温与超导》2008年第7期12-15,共4页Cryogenics and Superconductivity

摘　　要：高温超导长带临界电流不均匀性的检测是实现高温超导带材大规模应用需要解决的一个问题。文中介绍了B i2223超导长带临界电流和n值不均匀性的检测方法,包括非接触检测法和四引线抽样检测法;并对四引线抽样检测法进行了仿真分析和实验验证。结果表明:这种方法工作量小、简单可行。Critical current inhomgeneity detection of long high temperature superconducting tapes is a problem to be resolved before the large scale application of high temperatttre superconducting tapes. This paper introduced the contact-free method and the four-probe sample method of long Bi2223 tapes, and validated the four-probe sample method through simulafions and experiments, the result shows that the method is simply feasible and costs less labor.

关 键 词：BI2223带材 临界电流 不均匀性 检测 

分 类 号：TM26[一般工业技术—材料科学与工程] TS934.3[电气工程—电工理论与新技术]