摘要
阐述了基于ZKY-CC各向异性磁阻传感器(AMR)与磁场测量仪的设计原理和实现方法,利用AMR测量固定距离下的通电直导线产生的磁场所对应的显示电压。再通过MATLAB对数据进行一阶线性拟合得到定标曲线,以此来探究直流导线电流与其磁场强度之间的关系并进一步探究和扩展AMR的性能,使得AMR在一定程度上可代替电流表进行电流的测量,保证研究出的仪器能更好服务于相关的科技活动。
Based on ZKY-CC anisotropic magnetoresistance(AMR)sensor and the design principle and realization method of the magnetic field measuring instrument,using the AMR to measure the output voltage produced by the magnetic fields of the electricity of the fixed distance straight wire.Through MATLAB,obtained by first-order linear fitting data calibration curve.Using it to explore the relationship between the electric current and the magnetic field strength.To further explore and expand the performance of the AMR,makes the AMR ammeter can be substituted to a certain extent for current measurement,to ensure that the developed instrument can better serve the relevant science and technology activities.
作者
曾育锋
卢丽卿
谭诗谣
黄少楚
陈嘉华
冯晓明
ZENG Yu-feng;LU Li-qing;TAN Shi-yao;HUANG Shao-chu;CHEN Jia-hua;FENG Xiao-ming(South China Normal University,Guangdong Guangzhou 510006)
出处
《大学物理实验》
2018年第1期9-12,共4页
Physical Experiment of College
关键词
磁阻传感器
电流
定标曲线
磁场
magnetic resistance sensor
current
the calibration curve
magnetic field
