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Abstract:
为了功率变换器中磁性元件的优化设计,需精确确定磁芯的幅值磁导率和增量磁导率。金属磁粉心是由金属磁粉颗粒、绝缘包裹以及空气(粘合剂)的组合体,其饱和磁感应强度高,磁导率低,阻抗角接近90度。因此测量磁粉芯的磁导率所需激磁源容量大(电压高,电流大),导致测量非常困难。为了快速便捷地测量磁粉芯的磁化特性,本文介绍了测量磁粉芯幅值磁导率和增量磁导率的直流测量方法,详细分析了直流测量法的工作原理和测量误差,通过实验验证了该方法的可行性。
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Source :
磁性元件与电源
ISSN: 2522-6142
Year: 2019
Issue: 10
Volume: 0
Page: 142-144
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count: -1
30 Days PV: 0
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