NUMERICAL CALCULATION OF DEMAGNETIZING FACTOR FOR PERMANENT MAGNET
ISSN: 0332-1649
Article publication date: 1 April 1995
Abstract
Recently, rare earth magnets with high coercive force such as Nd‐Fe‐B magnets have been developed. When the magnetic characteristic (M‐H curve) of such a strong magnet is measured, the conventional closed magnetic circuit method using an electromagnet cannot be applicable due to the magnetic saturation of the yoke. Therefore, the open magnetic circuit method has been proposed in which high magnetic fields are generated by using a superconducting or a pulsed magnet. In this method, the correction for demagnetizing field is required. The correction can be done using the demagnetizing factor which is a function of the shape and M‐H curve. The conventional studies take into account only the shape.
Citation
Muramatsu, K., Nakata, T., Takahashi, N., Fujiwara, K. and Ukita, H. (1995), "NUMERICAL CALCULATION OF DEMAGNETIZING FACTOR FOR PERMANENT MAGNET", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 14 No. 4, pp. 157-161. https://doi.org/10.1108/eb051934
Publisher
:MCB UP Ltd
Copyright © 1995, MCB UP Limited