Abstract
The magnetic field and loss in an apparatus for the determination of magnetic properties of electrical steel under rotational flux conditions using field sensing coils (H-coils) is numerically analyzed by finite-element calculations in order to improve accuracy. The method considered here is based on a determination of field quantities and makes use of square-shaped samples and an air gap between the pole faces and the sample. Errors in field strength and loss are reduced by using optimum yoke construction and the double H-coil method.
