Title :
Magnetostriction measurements with a laser Doppler velocimeter
Author :
Nakata, Takayoshi ; Takahashi, Norio ; Nakano, Masanori ; Muramatsu, Kazuhiro ; Miyake, Masahide
Author_Institution :
Dept. of Electr. & Electron. Eng., Okayama Univ., Japan
fDate :
11/1/1994 12:00:00 AM
Abstract :
A new method for measuring the magnetostriction of silicon steel sheet using a laser Doppler velocimeter has been developed. This method has the following advantages: (a) non-contact measurement, (b) better resolution (less than 4×10-8 m under the condition that the error is within 1%) than conventional methods, (c) measurement of magnetostriction in any direction of anisotropic material and (d) little operator skill required
Keywords :
ferromagnetic materials; iron alloys; laser velocimetry; magnetostriction; silicon alloys; laser Doppler velocimeter; magnetostriction measurements; silicon steel sheet; Displacement measurement; Frequency measurement; Laser beams; Laser noise; Magnetostriction; Mirrors; Silicon; Steel; Structural beams; Velocity measurement;
Journal_Title :
Magnetics, IEEE Transactions on
