标准摘要
[中文适用范围]： IEC 60404-18:2025 定义了使用超导磁体 (SCM) 在开放磁路中测量永磁材料直流磁性能的方法的一般原理和技术细节。该方法适用于永磁材料，例如 IEC 60404‑8‑1 中规定的材料，其特性假定在整个体积内是均匀的。有两种方法： - SCM-振动样品磁强计 (VSM) 方法； - SCM-提取方法。本文件还规定了校正试样中的自退磁场对在开放磁路中获得的退磁曲线的影响的方法。磁性能是根据校正后的退磁曲线确定的。 [外文原描述]： IEC 60404-18:2025 defines 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 specifies methods to correct the influence of the self-demagnetizing field in the test specimen on the demagnetization curve obtained in an open magnetic circuit. The magnetic properties are determined from the corrected demagnetization curve.
英文名称Magnetic materials - Part 18: Permanent magnet (magnetically hard) materials - Methods of measurement of the magnetic properties in an open magnetic circuit using a superconducting magnet