Detecting and describing the inhomogeneity of critical current in practical long HTS tapes using contact-free method

	Detecting and describing the inhomogeneity of critical current in practical long HTS tapes using contact-free method
	Dai ST(戴少涛)
刊名	Cryogenics
	2007
通讯作者	戴少涛
中文摘要	The nondestructive and contact-free apparatus for measuring local critical current of long high temperature superconducting (HTS) tapes is presented. The local critical current of tape is acquired by using Hall probe array sensor to measure the remanent field after exposed to dc external magnetic field since the critical current is proportional to remanent field based on Bean critical state model. A detailed experiment on multifilamentary Bi2223/Ag tape is made to validate reproducibility, reliability, resolution, nondestructiveness and usefulness for manufacturer and user of tapes. The parameter COV (coefficient of critical current variation) is suggested for quantitatively describing the inhomogeneity and quality of practical long HTS tape based on Gaussian statistical analysis. The developed apparatus can detect HTS tape at velocity of 100 m/h with resolution smaller than 3 mm in liquid nitrogen.
学科主题	超导电工技术
收录类别	1,4
公开日期	2010-09-29
附注	The nondestructive and contact-free apparatus for measuring local critical current of long high temperature superconducting (HTS) tapes is presented. The local critical current of tape is acquired by using Hall probe array sensor to measure the remanent field after exposed to dc external magnetic field since the critical current is proportional to remanent field based on Bean critical state model. A detailed experiment on multifilamentary Bi2223/Ag tape is made to validate reproducibility, reliability, resolution, nondestructiveness and usefulness for manufacturer and user of tapes. The parameter COV (coefficient of critical current variation) is suggested for quantitatively describing the inhomogeneity and quality of practical long HTS tape based on Gaussian statistical analysis. The developed apparatus can detect HTS tape at velocity of 100 m/h with resolution smaller than 3 mm in liquid nitrogen.
内容类型	期刊论文
源URL	[http://ir.iee.ac.cn/handle/311042/771]
专题	电工研究所_超导电力科学技术研究发展中心_超导电力科学技术研究发展中心_期刊论文
推荐引用方式 GB/T 7714	Dai ST. Detecting and describing the inhomogeneity of critical current in practical long HTS tapes using contact-free method[J]. Cryogenics,2007.
APA	戴少涛.(2007).Detecting and describing the inhomogeneity of critical current in practical long HTS tapes using contact-free method.Cryogenics.
MLA	戴少涛."Detecting and describing the inhomogeneity of critical current in practical long HTS tapes using contact-free method".Cryogenics (2007).