基于霍尔效应的雷电磁场测量装置  

A device of measuring lightning magnetic field based on Hall effect

作　　者：张潇艺 王彩霞[1] 田杨萌[1] 刘琳 崔丽兰 ZHANG Xiaoyi;WANG Caixia;TIAN Yangmeng;LIU Lin;CUI Lilan(Faculty of Science,Beijing Information Science and Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学理学院,北京100192

出　　处：《应用科技》2021年第4期34-37,共4页Applied Science and Technology

基　　金：国家自然科学基金项目(41375012);北京市自然科学基金项目(KZ201411232037).

摘　　要：为了解决雷电磁场测量的二维局限性问题,利用霍尔效应原理,设计出一种新型雷电磁场测量装置。在三维正交的空间支架3个轴上,分别安置相互正交的霍尔元件,测量时为测量装置的电路和霍尔元件分别通上工作电流,将霍尔元件置于待测磁场中的指定测试点。根据所测霍尔元件的电压、霍尔系数以及霍尔元件工作电流,可以在3个正交方向上分别确定所述待测量磁场分量的大小,然后求出该点的总磁场方向和大小。此测量装置线路设计简单,可以放置在室外进行测量,具有成本低、安装方便、可直流电源供电和信号噪声小等特点,提高了雷电磁场测量的便捷性。In order to solve the two-dimensional limitation of lightning magnetic field measurement,a new type of lightning magnetic field measurement device is designed based on the Hall effect principle.The orthogonal Hall elements are placed on the three axes of the three-dimensional orthogonal space bracket.When measuring,the working current is applied to the circuit and Hall element of the measurement device respectively,and the Hall element is placed at the designated test point in the magnetic field to be measured.According to the measured voltage,Hall coefficient and working current of the hall element,the magnitude of the magnetic field component to be measured can be determined in three orthogonal directions,and then the total magnetic field direction and magnitude of the point can be calculated.The circuit design of this measuring device is simple,and it can be placed outdoors for measurement.It has the characteristics of low cost,convenient installation,direct current(DC)power supply and low signal noise,which improves the convenience of lightning magnetic field measurement.

关 键 词：霍尔效应 雷电磁场 霍尔电压 霍尔系数 霍尔元件 正交 三维 直流电源 

分 类 号：TN710[电子电信—电路与系统]