利用霍尔传感器研究脉冲功率源模块的磁场特性  

Research on Magnetic Field of Pulse Power Supply Module by Analog Hall Probe

作　　者：董健年[1] 张军[1] 崔艳丽[1] 董李江[1] 

机构地区：[1]南京理工大学动力工程学院,南京210094

出　　处：《弹道学报》2008年第4期103-106,共4页Journal of Ballistics

摘　　要：以电磁发射技术用脉冲功率源模块为研究对象,根据模块内各部件磁场的特点,采用霍尔效应法对其放电过程产生的脉冲磁场进行了测试,获得了脉冲电源模块内部3个测试点在不同放电电压下的磁场数据,对数据进行了处理.通过数据对比分析可知,模块中磁感应强度最强的区域位于电抗器端面外侧;可控硅开关装置外测处磁场是多个磁场叠加的结果,磁场和电流不呈线性关系;测控系统处的磁场最为复杂,该处磁场变化大且与模块放电电流波形的差异最大;磁场随距离的增加衰减较快.Taking pulse power supply module applied in electromagnetic launch as research object, the pulse magnetic field caused by discharge process was tested by Hall effect according to the characteristic of each part of magnetic field in module. The amplitude and waveform of pulse magnetic field was measured by analog Hall probe in the three test points within the module. The data was processed. The area of the maximum magnetic induction in module is the outside of head face of electric reactor; the outside magnetic field of silicon controlled switch forms by superimposition of many magnetic fields. The relations between magnetic field and current is nonlinear. The magnetic field of the position occupied by measurement and control system is most complicated. Its change as well as the difference with the discharge current is great. The magnetic field attenuates rapidly with the increase of distance.

关 键 词：电磁发射技术 脉冲功率源技术 强脉冲磁场 霍尔效应 

分 类 号：TM89[电气工程—高电压与绝缘技术]