Measurement iron loss using rotational magnetic loss measurement apparatus.

Several methods have been proposed for the measurement of the magnetic losses in electrical steel sheet under the condition of rotating flux. The method considered here is based on a determination of the fied quantities and makes use of square-shaped samples and an air gap between the pole faces and the sample. We earlier reported the magnetic field analysis result by finite element method. In this paper we report the measurement method of rotational power loss and the result.