DocumentCode
1074169
Title
A new measuring system of initial relative permeabilities by using a high-T c superconductor at a temperature of 77.4 K
Author
Itoh, Mineo ; Ohyama, Takashi
Author_Institution
Dept. of Electr. Eng., Kinki Univ., Higashi-Osaka, Japan
Volume
29
Issue
6
fYear
1993
fDate
11/1/1993 12:00:00 AM
Firstpage
3586
Lastpage
3588
Abstract
A system for the measurement of the initial relative permeability (μsi) of magnetic materials at the temperature corresponding to the boiling point of liquid nitrogen (77.4 K) is discussed. The system makes use of magnetic rods as the measurement samples, a superconducting Y-Ba-Cu-O (YBCO) rod as the standard sample, an excitation coil, and a differential coil. The authors examine the principle of the measuring system and the frequency characteristics of μsi for typical magnetic materials at a temperature of 77.4 K
Keywords
barium compounds; high-temperature superconductors; magnetic permeability measurement; yttrium compounds; 77.4 K; Y-Ba-Cu-O; differential coil; excitation coil; frequency characteristics; high-Tc superconductor; initial relative permeabilities; magnetic materials; magnetic rods; measuring system; Frequency measurement; Magnetic liquids; Magnetic materials; Measurement standards; Nitrogen; Permeability measurement; Superconducting coils; Superconducting magnets; Temperature; Yttrium barium copper oxide;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.281238
Filename
281238
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