磁性材料 第10部分:磁性钢片和钢带在中频下的磁性能的测量方法

[中文适用范围]： IEC 60404的本部分适用于晶粒取向和无取向电工钢带材和板材，用于测量频率范围400 Hz至10000 Hz的交流磁性能。本文件的目的是定义通过爱泼斯坦框架测量电工钢带和薄板磁性能的一般原理和技术细节。 Epstein 框架适用于从任何等级的电工钢带和板材获得的测试样本。交流磁特性是针对正弦感应电压、指定的磁极化峰值和指定的频率来确定的。测量应在（23±5）°C 的环境温度下对首先消磁的试样进行。注：在本文件中，术语“磁极化”按照 IEC 60050-221 中的定义使用。在 IEC 60404 系列的一些标准中，使用了术语“磁通密度”。 [外文原描述]： IEC 60404-10:2016(E) is applicable to grain-oriented and non-oriented electrical steel strip and sheet for measurements of a.c. magnetic properties in the frequency range 400 Hz to 10 000 Hz. The object of this document is to define the general principles and the technical details of the measurement of magnetic properties of electrical steel strip and sheet by means of an Epstein frame. This edition includes the following significant technical changes with respect to the previous edition: a) adaption to modern measurement and evaluation methods, in particular the introduction of the widely spread digital sampling method for the acquisition and evaluation of the measured data; b) introduction of formal changes which adapt this standard to other standards of the 60404 series; c) revision of the problem of the air flux compensation taking account of the condition of the higher frequencies; d) revision of the capacitive coupling of mutual inductor windings together with the consideration of the alternative method of numerical air flux compensation. The contents of the corrigendum of March 2018 have been included in this copy.