Saturation Characteristics of Ferrite Beads Impacted by the Nanosecond’s Current Pulse

QIN Feng; ZHOU Hui; MAO Congguang; WU Gang; CUI Zhitong

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Saturation Characteristics of Ferrite Beads Impacted by the Nanosecond’s Current Pulse

更新时间：2025-12-08

- Saturation Characteristics of Ferrite Beads Impacted by the Nanosecond’s Current Pulse
- Vol. 43, Issue 10, Pages: 3381-3386(2017)
- 作者机构：
  
  强电磁脉冲辐射环境模拟与效应国家重点实验室(西北核技术研究所)
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 October 2017，
  
  Published：2017
- 稿件说明：
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QIN Feng, ZHOU Hui, MAO Congguang, et al. Saturation Characteristics of Ferrite Beads Impacted by the Nanosecond’s Current Pulse[J]. 2017, 43(10): 3381-3386.
DOI：

QIN Feng, ZHOU Hui, MAO Congguang, et al. Saturation Characteristics of Ferrite Beads Impacted by the Nanosecond’s Current Pulse[J]. 2017, 43(10): 3381-3386. DOI：

摘要

针对铁氧体环应用于复杂电磁环境防护设计问题

研究了脉冲传导电流作用下铁氧体磁环的饱和特性。在伏安法测得磁环的磁化曲线的基础上

采用磁性朗之万函数拟合磁化曲线

分别获得不同脉冲电流脉宽、磁环厚度、截面积、内外径之比以及材料种类等参数下

磁环的饱和电流特性。结果表明:纳秒级脉冲电流的脉宽对磁环的饱和特性几乎没有影响;磁环的截面积与磁环的饱和电流成线性正比关系

而磁环的厚度以及磁环的内外径之比对磁环的饱和特性几乎没有影响;初始磁导率越大的磁环其饱和电流越小

且饱和电流随截面积的增速也越小。

Abstract

For ferrite beads used in the design of complex electromagnetic environment protection problems

we researched the saturation characteristics of ferrite beads under the conducted current of electromagnetic pulse.On the basis of the measurement of magnetization curves in voltammetry and fitted the magnetization curve by using magnetic Langevin function

we obtained the magnetic saturation current under different pulse widths of electromagnetic pulse conduction current

the thicknesses

the cross-sectional areas

the ratios of the diameter and the material types of the ferrite.The experimental results show that the pulse width of the nanosecond pulse current through the ferrite bead has hardly influence on the saturation characteristics.The saturation current is proportional to the cross-sectional area of the ferrite bead

while the thickness and the ratio of the diameter of the ferrite beads have hardly relationship with the saturation characteristics.The bigger the initial magnetic permeability of the ferrite bead is

the smaller the saturation current and its growth along with the cross-section area are.

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