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中文摘要：
为测试磁开关磁芯在bts级脉冲激励下的磁特性，设计并制作了基于没有附加磁芯复位电路的单级磁脉冲压缩系统，3块被测磁芯分别代表铁基非晶、Ni—Zn和Mn-Zn3种软磁材料。磁芯的磁滞回线由测量所得的磁开关两端电压和电流数据经计算得到，由磁滞回线可知这3种软磁材料在us脉冲激励下的各种特性参数。通过分析比较这些特性参数可知：铁基非晶磁芯具有最大的磁通跳变，同样的V—s积和匝数时，铁基非晶磁芯所需体积最小；Mn—Zn铁氧体磁芯具有最小的能量损耗，适合高重复频率下的应用；Ni—Zn铁氧体磁芯饱和后的相对磁导率最低，适用于较高压缩增益的磁压缩电路中。
英文摘要：
A one-stage magnetic pulse compression （MPC） system without external remagnetization circuits was designed and manufactured so as to test the dynamic characteristics of magnetic core under micro-second pulse excitation. Three pieces of magnetic core samples represent Fe-based noncrystal, Ni-Zn and Mn-Zn soft magnetic materials respectively. B-H curves of the magnetic cores were derived from the measured voltage and current waveforms. Variation characteristics of the three materials under micro second pulse excitation can be figured out from the B-H curves. Through detailed analysis and comparison, it can be concluded that Fe-based noncrystal magnetic core has the largest jump of magnetic flow, so that the volume of magnetic core needed is minimal with the same volt-second product and the same number of windings; however, Mn-Zn ferrite magnetic core bears the minimal energy loss, which makes it suitable for applications under high repetitive frequency; Ni-Zn ferrite magnetic core, which owns the lowest relative permeability while saturation, is seemly in MPC circuits with relative high compression gain.
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