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Nakase, Tomoya Okayama University
Nakano, Masanori Okayama University
Fujiwara, Koji Okayama University
Takahashi, Norio Okayama University
A measuring system for magnetostriction of silicon steel sheet using optical methods and a single sheet tester has been developed to establish a standard test method for IEC and JIS. Various factors affecting measurement accuracy and reproducibility of the developed system are examined. Two optical instruments, such as a laser Doppler vibrometer and a heterodyne displacement meter, are compared. 3-D characteristics of magnetostriction under ac excitation in the rolling direction are measured up to 2.0 T
magnetic variables measurement
measurement by laser beam
Digital Object Identifier: 10.1109/20.706800
Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics, IEEE Transactions on, July 1998, Volume 34, Issue 4, Part 1, Pages 2072 - 2074.
Copyright © 1998 IEEE. All rights reserved.