2017 Volume 25 Issue 3 Pages 338-343
In order to develop low loss and low acoustic noise motor with high speed rotation, it is important to measure vector magnetic characteristics and two-dimensional magnetostriction of a non-oriented electrical steel sheet. The iron loss of motor core material increases depending on frequency. A ultra-thin non-oriented electrical steel sheet is developed to decrease the iron loss. The new material is expected to be applies in a wide range of motors. However, the vector magnetic characteristics and two-dimensional magnetostriction of the new material is not made clear. This paper presents measured results of the vector magnetic characteristics and the two-dimensional magnetostriction of the ultra-thin non-oriented electrical steel sheet under high frequency. The effect of difference in thickness is made clear.
