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电气钢的爱斯坦条带的透米和电磁体测量

Du-Xing Chen¹, Yong-Hong Zhu²

¹Departament de Física, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain.

The Review of scientific instruments

|September 19, 2023

概括

精确的交流磁力测量需要仔细考虑旋流效应. 推使用周长度测量来表征电气钢带中的AC B(H) 环,与电磁管方法不同.

科学领域:

材料科学材料科学材料科学
电气工程电气工程
电磁主义电磁主义

背景情况:

对磁性材料的准确表征对于电气应用至关重要.
爱斯坦框架测量是标准的,但可能会受到非均场的影响.
了解去磁化和旋流效应对于精确的B (H) 循环确定至关重要.

研究的目的:

为了研究和比较DC和AC磁流密度与磁场 (B(H)) 循环测量.
分析爱斯坦电带中的去磁化和流效应.
确定最可靠的方法来测量AC B(H) 环在电气钢带.

主要方法:

测量使用IEC类型A透米仪和长电磁带进行.
在电气钢带上测量了直流和交流B (H) 循环.
分析和建模了去磁化和流效应.

主要成果:

由于复杂的旋转电流效应,调整为去磁效应的电磁管测量不适用于AC B(H) 循环.
通过使用平面H线圈进行周长测量,可以获得具有代表性的AC B(H) 循环,因为磁场 (H) 在大部分条带上均.
在爱斯坦测量中的有效磁路长 (lm) 需要使用周长度衍生AC B(H) 循环进行校准.

结论:

标准电磁铁方法对于AC B(H) 循环测量在电气钢带中是不够的.
国际电路委员会 (IEC) 的A型透米测量提供了一种更准确的方法来表征交流磁性.
精确的AC B(H) 数据从周长度测量对于校准爱斯坦框架测量和改进磁性材料表征至关重要.

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