磁阻传感器测量地磁场的实验数据处理  

Data Processing of Magnetoresistance Sensor for Measuring the Earth-Magnetic Field

作　　者：魏奶萍[1] 

机构地区：[1]西安文理学院,陕西西安710065

出　　处：《大学物理实验》2016年第3期115-117,共3页Physical Experiment of College

基　　金：西安市科技计划项目(CXY1443WL01)

摘　　要：介绍了磁阻传感器的实验原理,用计算机origin软件对实验数据进行曲线拟合,拟合结果与传统最小二乘法处理数据相吻合。计算了霍尔灵敏度和西安市区地磁场的大小,误差较小。The principle of magnetoresistance sensor experimental is introduced.The data measured in the ex-periment are carried out curve fitting by the origin software. The experiment result shows an excellent accord-ance with the result of data processing by traditional least square method,hall element sensitivity and Xi’ an urban earth-magnetic are calculated,it found that the error is smaller.

关 键 词：磁阻传感器 地磁场 曲线拟合 数据处理 

分 类 号：TM936.6[电气工程—电力电子与电力传动]