基于霍尔传感器的磁场测量仪设计与制作.docx

基于霍尔传感器的磁场测量仪设计与制作 学生姓名：杜俊杰 指导教师：董有尔 摘要：介绍了一种基于霍尔效应传感器的高精度、宽范围的磁场测量仪的硬件组成和软件 仪器具有自动调零、数据平滑的特性，能够实现单位制切换、数据保持以及超量程告警的 用于对稳恒磁场、交变磁场等场强的测量。利用该装置测量了亥姆霍兹线圈中心轴线磁场 用origin数学软件以理论计算公式拟合，表明装置具有优良的实际测量性能。 关键词：霍尔传感器，单片机，磁场测量仪，拟合 Design and Production of Magnetometer Based on Hall Sensor Student: Du Junjie Abstract: The paper introduced hardware structure and software design of a kind of magn which has a high precision and wide spectrum. The device can be zeroed automatically and outp data, it has functions of switch between SI and GSI, holding data and warning when result is range. The device can be used for measuring steady and alternating magnetic field. Magn distributing along centre axes of Helmholtz loop is tested by the device. Then all the data ar OriginPro8, which showed the device’s excellent capability. Keywords: Hall sensor, MCU, Micro Controller Unit, Magnetometer, Fit HYPERLINK \l _bookmark0 目录 HYPERLINK \l _bookmark0 引言....................................................................................................................................... 1. HYPERLINK \l _bookmark0 磁场测量方法..................................................................................................................... HYPERLINK \l _bookmark0 1.1 磁力法...................................................................................................................... 1.2 电磁感应法............................................................................................................... 1. HYPERLINK \l _bookmark1 3 磁饱和法................................................................................................................... 1. HYPERLINK \l _bookmark1 4 电磁效应法............................................................................................................... 1.4.1 霍尔效应法..................................................................................................... 1.4.2 磁阻效应法..........................................