摘要
介绍了Norris等估算交流损耗的模型,总结了交流损耗估算模型适用性。与热测法相比,电测法极易受到电磁环境干扰,相对比较敏感,有一定的局限性。通过综述热测法研究成果,发现热测法还存在灵敏度较低、精度较难把握、测量周期较长等问题。采用热测法的关键在于提高测量仪器(如流量计)的精度、减小漏热、稳定气流等。
Some estimating models of AC losses for high temperature superconducting materials（ such as Norris model） were introduced and their applicability was also summarized. Compared with calorimetric method, the electric method has some limitations because of sensitivity to the electromagnetic environment. From the systematic review on progresses of calorimetric method, it is appreciable that there were still some problems, such as low sensitivity, low accuracy and long measurement cycle. The key point is improving the accuracy of measurement instruments （ e. g. flow meter） , reducing heat leakage and ensuring gas stabil- ity, etc.
出处
《低温工程》
CAS
CSCD
北大核心
2010年第6期19-24,共6页
Cryogenics
基金
国家高技术研究发展计划(863)项目资助(No.2009AA03Z209)
关键词
超导材料
交流损耗
热测法
综述
high temperature superconducting
AC loss
calorimetric method
review
