JIS C 2501:1998 English Edition

Methods of test for permanent magnet

Abstract

The purpose of this Japanese Industrial Standard is to define the method of measurement of the magnetic flux density, magnetic polarization and the magnetic field strength and also the determination of the demagnetization curve and recoil line of permanent magnet materials, such as those specified in JIS C 2502, the properties of which are presumed homogeneous throughout their volume. The performance of a magnetic system is not only dependent on the properties of the permanent magnet material but also on the dimensions of the system, the air-gap and other elements of the magnetic circuit. The methods described in this Standard refer to the measurement of the magnetic properties in the closed magnetic circuit simulating a ring.

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