摘要
为了解决弱磁场强度测量困难的问题,基于霍尔效应开发了以线性霍尔元件为探头弱磁场测量装置。对磁场测量装置各部分电路模块进行了详细设计,并结合矩形线圈磁场分布特征进行了实测值与仿真理论值的对比分析。结果表明,测量结果与理论值具有较好的拟合程度,该装置测量精度为0.01 m T,测量范围为±10 m T,最大测量误差为0.29 m T,具有测量精度高、操作简单方便、设计成本低等优点,可应用于各类线圈弱磁场强度的检测及逐点测量实验中。
The low-intensity magnetic field is hard to measure,so the low-intensity magnetic field measurement device taking the linear Hall element as the probe was developed based on Hall effect. The circuit modules of the magnetic field measurement device were designed in detail. The measured value and simulation theoretical value are compared in combination with the magnetic field distribution characteristic of the rectangular coil. The comparison results show that the measured value and theoretical value have perfect fitting degree. The measurement accuracy of the device is 0.01 m T,measurement range is ±10 m T,and maximum measurement error is 0.29 m T. The measurement device has the advantages of high measurement accuracy,easy operation and low cost,and can apply to the detection of various coil low-intensity magnetic fields and point-by-point measurement experiments.
出处
《现代电子技术》
北大核心
2016年第7期154-157,共4页
Modern Electronics Technique
基金
国家自然科学基金项目(51105217
51205218)
青岛理工大学名校建设工程项目(MX4-020
MX4-053)
青岛市科技计划基础研究项目(13-1-4-jch)
关键词
霍尔效应
矩形线圈
弱磁场
测量装置
Hall effect
rectangular coil
low-intensity magnetic field
measurement device
