Examination and Analysis of Critical Current Uniformity of Long HTS Tapes by the MCorder

Shengnan Zou; Chen Gu; Timing Qu; Siwei Chen; Xiaohang Li; Zhenghe Han

doi:10.1109/TASC.2014.2374418

Examination and Analysis of Critical Current Uniformity of Long HTS Tapes by the MCorder

Shengnan Zou
, Chen Gu
, Timing Qu
, Siwei Chen
, Xiaohang Li
, Zhenghe Han

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The magnetic circuit (MC) method has been developed to measure the critical current (I_c) of long high temperature superconductor (HTS) tapes continuously since 2010. So far, with the apparatus based on the MC method, namely MCorder, industrial HTS tapes produced by main manufactures worldwide have been measured using the MC method, including Bi2223/Ag multifilament tapes and coated conductors with/without magnetic substrates. The high speed (360 m/h), high accuracy measurement (resolution 1 A) and its adaption to all kinds of HTS tapes make large quantity measurement and statistical evaluation of HTS tape possible. In this paper, criteria for I_c assessment of long HTS tapes is discussed, based on which analysis of samples from different manufacturers worldwide is provided. The measurement result of a Bi2223/Ag tape by MC method is compared with section-by-section four-probe method, and the two methods show good agreement. Fourier analysis is given for analyzing I_c periodicity of a tape with periodical artificial defects.

Original language	English (US)
Article number	6966730
Journal	IEEE Transactions on Applied Superconductivity
Volume	25
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2014.2374418
State	Published - Jun 1 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Keywords

Critical Current Uniformity
Fourier
HTS tape
Magnetic Circuit
Statistics

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10.1109/TASC.2014.2374418

Cite this

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title = "Examination and Analysis of Critical Current Uniformity of Long HTS Tapes by the MCorder",

abstract = "The magnetic circuit (MC) method has been developed to measure the critical current (Ic) of long high temperature superconductor (HTS) tapes continuously since 2010. So far, with the apparatus based on the MC method, namely MCorder, industrial HTS tapes produced by main manufactures worldwide have been measured using the MC method, including Bi2223/Ag multifilament tapes and coated conductors with/without magnetic substrates. The high speed (360 m/h), high accuracy measurement (resolution 1 A) and its adaption to all kinds of HTS tapes make large quantity measurement and statistical evaluation of HTS tape possible. In this paper, criteria for Ic assessment of long HTS tapes is discussed, based on which analysis of samples from different manufacturers worldwide is provided. The measurement result of a Bi2223/Ag tape by MC method is compared with section-by-section four-probe method, and the two methods show good agreement. Fourier analysis is given for analyzing Ic periodicity of a tape with periodical artificial defects.",

keywords = "Critical Current Uniformity, Fourier, HTS tape, Magnetic Circuit, Statistics",

author = "Shengnan Zou and Chen Gu and Timing Qu and Siwei Chen and Xiaohang Li and Zhenghe Han",

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AU - Zou, Shengnan

AU - Gu, Chen

AU - Qu, Timing

AU - Chen, Siwei

AU - Li, Xiaohang

AU - Han, Zhenghe

PY - 2015/6/1

Y1 - 2015/6/1

N2 - The magnetic circuit (MC) method has been developed to measure the critical current (Ic) of long high temperature superconductor (HTS) tapes continuously since 2010. So far, with the apparatus based on the MC method, namely MCorder, industrial HTS tapes produced by main manufactures worldwide have been measured using the MC method, including Bi2223/Ag multifilament tapes and coated conductors with/without magnetic substrates. The high speed (360 m/h), high accuracy measurement (resolution 1 A) and its adaption to all kinds of HTS tapes make large quantity measurement and statistical evaluation of HTS tape possible. In this paper, criteria for Ic assessment of long HTS tapes is discussed, based on which analysis of samples from different manufacturers worldwide is provided. The measurement result of a Bi2223/Ag tape by MC method is compared with section-by-section four-probe method, and the two methods show good agreement. Fourier analysis is given for analyzing Ic periodicity of a tape with periodical artificial defects.

AB - The magnetic circuit (MC) method has been developed to measure the critical current (Ic) of long high temperature superconductor (HTS) tapes continuously since 2010. So far, with the apparatus based on the MC method, namely MCorder, industrial HTS tapes produced by main manufactures worldwide have been measured using the MC method, including Bi2223/Ag multifilament tapes and coated conductors with/without magnetic substrates. The high speed (360 m/h), high accuracy measurement (resolution 1 A) and its adaption to all kinds of HTS tapes make large quantity measurement and statistical evaluation of HTS tape possible. In this paper, criteria for Ic assessment of long HTS tapes is discussed, based on which analysis of samples from different manufacturers worldwide is provided. The measurement result of a Bi2223/Ag tape by MC method is compared with section-by-section four-probe method, and the two methods show good agreement. Fourier analysis is given for analyzing Ic periodicity of a tape with periodical artificial defects.

KW - Critical Current Uniformity

KW - Fourier

KW - HTS tape

KW - Magnetic Circuit

KW - Statistics

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Examination and Analysis of Critical Current Uniformity of Long HTS Tapes by the MCorder

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

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