DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Permanent magnet (magnetically hard) materials - Methods of measurement of the magnetic properties in an open magnetic circuit using a Pulsed Field Magnetometer
Abstract
The purpose of this part of IEC 60404 is to define the general principle and technical details of the methods of measurement of the steady state magnetic properties of permanent magnet materials in an open magnetic circuit using a Pulsed Field Magnetometer (PFM). This method is applicable to permanent magnet materials, such as those specified in IEC 60404-81, the properties of which are presumed homogeneous throughout their volume. This document also specifies methods to correct the influence of the demagnetizing field in the test specimen on the demagnetization curve obtained in an open magnetic circuit. The PFM rapidly measures the test specimen via magnetic response of a test specimen in a pulsed magnetic field. Conse-quently, additional correction may be required to remove the influence of eddy currents generated in the test specimen. This document also specifies when such eddy current corrections should be applied. The mag-netic properties are determined from a corrected demagnetization curve.
Begin
2026-08-21
Planned document number
DIN EN IEC 63311
Project number
02234132
