| Publication CODE |
Title |
| IEC TR 63304:2021 (2021-04) |
METHODS OF MEASUREMENT OF THE MAGNETIC PROPERTIES OF PERMANENT MAGNET (MAGNETICALLY HARD) MATERIALS in AN OPEN MAGNETIC CIRCUIT USING A SUPERCONDUCTING MAGNET |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
286.00 €
|
46. |
Description
IEC TR 63304:2021(E) describes the general principle and technical details of the methods of measurement of the DC magnetic properties of permanent magnet materials in an open magnetic circuit using a superconducting magnet (SCM).
This method is applicable to permanent magnet materials, such as those specified in IEC 60404-8-1, the properties of which are presumed homogeneous throughout their volume.
There are two methods:
' the SCM-Vibrating Sample Magnetometer (VSM) method;
' the SCM-Extraction method.
This document also describes methods to correct the influence of the self-demagnetizing field in the test specimen on the demagnetization curve measured in an open magnetic circuit. The magnetic properties are determined from the corrected demagnetization curve.
NOTE'These SCM-methods can determine the magnetic properties of permanent magnet materials with coercivity higher than 2 MA/m. The methods of measurement in a closed magnetic circuit specified in IEC 60404-5 can lead to significant measurement error due to saturation effects in the pole pieces of yoke for the magnetic materials with coercivity higher than 1,6 MA/m (see IEC 60404-5).
|
| Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
|
| Status |
IEC PUBLICATION |
| Situation |
Currently active
|
|
| Committee |
TC 68
MAGNETIC ALLOYS AND STEELS
|
| Responsible |
De heer VAN HECKE Luk
|
| BEC Approval |
2021-04-26 |
| ICS-Code (International Standards Classification) |
17.220.20
, 29.030
|
| NBN Status |
New |
|
| IEC publication date |
2021-04-26 |
| IEC stability date |
2025-12-31 |
| IEC file modification date |
2021-04-28 |
| IEC last modification date |
2021-04-28 |
|
