Premium
Localized magnetic properties in grain‐oriented electrical steel measured by needle probe method
Author(s) -
Senda Kunihiro,
Ishida Masayoshi,
Sato Keiji,
Komatsubara Michiro,
Yamaguchi Toshinao
Publication year - 1999
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(199903)126:4<1::aid-eej1>3.0.co;2-7
Subject(s) - materials science , yoke (aeronautics) , electrical steel , plane (geometry) , magnetic flux , grain size , composite material , condensed matter physics , nuclear magnetic resonance , magnetic field , geometry , mechanics , physics , mathematics , quantum mechanics , flight control surfaces , aerodynamics
The accuracy of a needle probe method in measuring localized magnetic properties of grain‐oriented electrical steel sheets was investigated and its application studied. The measuring error for the localized flux density was determined to be less than 1.7% for a load on the needle tip lighter than 300 g when the yoke structure was symmetrical with respect to the sheet plane. The average of localized iron losses measured with the combination of a needle probe and a Hall probe was in linear relation to the overall losses in the sheet. This method revealed that the localized magnetic properties vary markedly from location to location inside the sheet, and that localized iron loss depends on the localized flux density, domain wall spacing, and yaw angle of grain orientation. © 1999 Scripta Technica, Electr Eng Jpn, 126(4): 1–11, 1999