Apparatus and method for measuring critical current properties of a coated conductor
Abstract
The transverse critical-current uniformity in a superconducting tape was determined using a magnetic knife apparatus. A critical current I.sub.c distribution and transverse critical current density J.sub.c distribution in YBCO coated conductors was measured nondestructively with high resolution using a magnetic knife apparatus. The method utilizes the strong depression of J.sub.c in applied magnetic fields. A narrow region of low, including zero, magnetic field in a surrounding higher field is moved transversely across a sample of coated conductor. This reveals the critical current density distribution. A Fourier series inversion process was used to determine the transverse J.sub.c distribution in the sample.
- Inventors:
-
- Los Alamos, NM
- Dresden, DE
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1067336
- Patent Number(s):
- 8228055
- Application Number:
- 12/560,303
- Assignee:
- Los Alamos National Security, LLC (Los Alamos, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- AC52-06NA25396
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Mueller, Fred M, and Haenisch, Jens. Apparatus and method for measuring critical current properties of a coated conductor. United States: N. p., 2012.
Web.
Mueller, Fred M, & Haenisch, Jens. Apparatus and method for measuring critical current properties of a coated conductor. United States.
Mueller, Fred M, and Haenisch, Jens. Tue .
"Apparatus and method for measuring critical current properties of a coated conductor". United States. https://www.osti.gov/servlets/purl/1067336.
@article{osti_1067336,
title = {Apparatus and method for measuring critical current properties of a coated conductor},
author = {Mueller, Fred M and Haenisch, Jens},
abstractNote = {The transverse critical-current uniformity in a superconducting tape was determined using a magnetic knife apparatus. A critical current I.sub.c distribution and transverse critical current density J.sub.c distribution in YBCO coated conductors was measured nondestructively with high resolution using a magnetic knife apparatus. The method utilizes the strong depression of J.sub.c in applied magnetic fields. A narrow region of low, including zero, magnetic field in a surrounding higher field is moved transversely across a sample of coated conductor. This reveals the critical current density distribution. A Fourier series inversion process was used to determine the transverse J.sub.c distribution in the sample.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 24 00:00:00 EDT 2012},
month = {Tue Jul 24 00:00:00 EDT 2012}
}
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