Numerical Simulation of Inductive Method and Permanent-Magnet Method for Measuring Critical Current Density

Author

Kamitani, Atsushi ; Takayama, Teruou ; Ikuno, Soichiro

Author_Institution

Grad. Sch. of Sci. & Eng., Yamagata Univ., Yamagata

Volume

44

Issue

6

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

926

Lastpage

929

Abstract

Two types of contactless methods for measuring the critical current density have been investigated numerically. For the purpose of reproducing the experimental results numerically, the behavior of the shielding current density is formulated by use of the current-vector-potential method. A numerical code has been developed for solving an initial-boundary-value problem of the resulting integral-differential equations and, by use of the code, both the inductive method and the permanent-magnet method are simulated successfully.

Keywords

critical current density (superconductivity); electric variables measurement; high-temperature superconductors; initial value problems; integro-differential equations; permanent magnets; superconducting thin films; contactless methods; critical current density measurement; current-vector-potential method; high-temperature superconductor thin films; inductive method; initial-boundary-value problem; integral-differential equations; permanent-magnet method; shielding current density; Convergence of numerical methods; finite-element methods; high-temperature superconductors; integration;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2007.916297

Filename

4526908