High-temperature, high-frequency characterization system for power ferrites

被引：14

作者：

Nakmahachalasint, P ^{[1
]}

Ngo, KDT ^{[1
]}

机构：

[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2003年 / 52卷 / 03期

关键词：

automatic testing; ferrimagnetic materials; ferrites; frequency measurement; high-temperature effects; high-temperature techniques; hysteresis; magnetic cores; temperature measurement;

D O I：

10.1109/TIM.2003.814689

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An automatic magnetic test system is presented that can measure hysteresis loops of Manganese-Zinc (MnZn) power ferrites up to their Curie temperatures, in the 10 kHz-1 MHz frequency range. Low-cost test fixtures are constructed that can withstand elevated temperatures as high as 250 degreesC. The experimental procedures for the automated. acquisition of. dynamic hysteresis loops with constant and with variable peak flux density are presented. The usefulness of the test system is demonstrated by the experimental results from three commercial MnZn power ferrites.

引用

页码：804 / 808

页数：5

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