旋转磁偶极子产生的感应电场研究

doi:10.3969/j.issn.1000-1093.2014.02.023

兵工学报 ›› 2014, Vol. 35 ›› Issue (2): 285-288.doi: 10.3969/j.issn.1000-1093.2014.02.023

• 研究简报 • 上一篇

旋转磁偶极子产生的感应电场研究

张伽伟，龚沈光，姜润翔，陈聪

（海军工程大学兵器工程系, 湖北武汉 430033）

收稿日期:2013-07-18 修回日期:2013-07-18 上线日期:2014-03-25
通讯作者: 张伽伟 E-mail:gaweizhang@163.com
作者简介:张伽伟（1986—），博士研究生
基金资助:
国家自然科学基金项目（51109215）

Study of Electric Field Induced by Rotating Magnetic Dipole

ZHANG Jia-wei, GONG Shen-guang, JIANG Run-xiang, CHEN Cong

(Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, Hubei, China)

Received:2013-07-18 Revised:2013-07-18 Online:2014-03-25
Contact: ZHANG Jia-wei E-mail:gaweizhang@163.com

摘要/Abstract

摘要： 为研究船舶磁性螺旋桨旋转产生的感应电场，将其等效为磁偶极子，采用法拉第电磁感应定律，利用环路积分推导出了匀速旋转磁偶极子感应电场的数学模型，仿真分析了旋转磁体感应电场的特性，通过实验证明了计算方法的正确性。实验结果表明：旋转磁体感应电场强度与磁体旋转速度、磁矩的大小呈正比；该电场的频率等于磁体旋转频率，三轴分量相位差分别为π/2 rad和π rad，均与理论分析一致；船舶磁性螺旋桨旋转产生的感应电场是船舶轴频电场的组成部分。完善了轴频电场的产生机理，为船舶轴频电场的检测和控制提供了理论参考。

关键词: 电磁学, 磁性螺旋桨, 磁偶极子, 匀速旋转, 感应电场, 电磁感应定律

Abstract: In order to study the electric field induced by rotating magnetic propeller, a mathematical model is proposed to calculate the electromagnetic signals induced by a rotating magnetic dipole based on the Faraday’s law of electromagnetic induction. An experiment is done in the laboratory pool to test the analytical method. The results show that the signal’s order of magnitude is proportional to the rotational frequency and magnetic moment, its frequency is consistent with the rotational frequency, and the phase differences of three axis are π/2 and π, respectively. The research proves that the electric field is a part of shaft-rate electric field of ship, which complements the mechanism of production of the shaft-rate electric field, and provides a theoretical basis for the detection or control of ship’s shaft-rate electric field.

Key words: electromagnetics, magnetic propeller, magnetic dipole, constant rotation, induced electric field, law of electromagnetic induction

中图分类号:

O441.1

张伽伟，龚沈光，姜润翔，陈聪. 旋转磁偶极子产生的感应电场研究[J]. 兵工学报, 2014, 35(2): 285-288.

ZHANG Jia-wei, GONG Shen-guang, JIANG Run-xiang, CHEN Cong. Study of Electric Field Induced by Rotating Magnetic Dipole[J]. Acta Armamentarii, 2014, 35(2): 285-288.

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旋转磁偶极子产生的感应电场研究

Study of Electric Field Induced by Rotating Magnetic Dipole

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