Title :
Development of the 2-D Single-Sheet Tester Using Diagonal Exciting Coil and the Measurement of Magnetic Properties of Grain-Oriented Electrical Steel Sheet
Author :
Takahashi, Naoyuki ; Mori, Yojiro ; Yunoki, Y. ; Miyagi, Daisuke ; Nakano, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Okayama Univ., Okayama, Japan
Abstract :
In order to analyze magnetic characteristics of magnetic devices, it is necessary to accurately measure magnetic properties of an electrical steel sheet in arbitrary directions. In this paper, we developed a 2-D-single-sheet tester (SST) using diagonal exiting coils in order to improve the measurement accuracy under high flux condition. The measurement region of flux density B and magnetic-field strength H is examined for the accurate measurement. The magnetic properties of grain-oriented electrical steel sheet under alternating magnetic flux and rotating magnetic flux are measured using our system. The accuracy of measurement in the case of grain-oriented sheet is examined by comparing the measured results using 2-D-SST with those by using an ordinary SST under alternating flux excitation. The effect of positioning error of orthogonal B and H coils on measurement accuracy is also discussed.
Keywords :
coils; magnetic devices; magnetic flux; magnetic variables measurement; steel; 2D-SST; 2d single-sheet tester; alternating magnetic flux; diagonal exciting coil; flux density; grain-oriented electrical steel sheet; magnetic properties; magnetic-field strength; measurement accuracy; positioning error; rotating magnetic flux; Area measurement; Coils; Electric variables measurement; Iron; Loss measurement; Magnetic properties; Steel; 2-D magnetic properties; Alternating magnetic flux; grain-oriented electrical steel sheet; rotating magnetic flux;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2157089
