A new pulse measurement method for magnetisation characteristics of small loss angle core
A new pulse measurement method for magnetisation characteristics of small loss angle core
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DOI：
10.1049/pel2.12006
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发表时间：
2020-12-30
影响因子：
2
通讯作者：
Wei, Chen
中科院分区：
文献类型：
--
作者：
Jinghui, Wang;Dayi, Su;Wei, Chen
小损耗角、高饱和磁通密度的磁粉芯的磁化特性难以测量。提出了一种新的脉冲测量方法，该方法利用预置偏置电压的电容通过RLC振荡放电对被测磁件施加脉冲激励电压，以磁导率为真空磁导率的空芯电感作为标准磁件，消除了传统脉冲测量方法的数值微分误差。在详细分析了新型脉冲测量法的测量原理和误差来源的基础上，建立了测量系统。利用阻抗分析方法，验证了该方法能够准确测量小损耗角下磁粉芯的磁化特性。
It is difficult to measure the magnetisation characteristics of magnetic powder cores with small loss angle and high saturation flux density. Here, a new pulse measurement method is proposed, in which the capacitance with preset bias voltage applies pulse excitation voltage to the measured magnetic component through RLC oscillation discharge, and the air core inductor whose permeability is vacuum permeability is used as the standard magnetic component to eliminate the numerical differential error of the traditional pulse measurement method. Based on the detailed analysis of the measurement principle and error source of the new pulse measurement method, the measurement system is established. The impedance analyser method is used to verify that it can accurately measure the magnetisation characteristics of the magnetic powder core with small loss angle.