基于Fe基合金薄带巨磁阻抗效应的新型磁敏传感器  

New Magnetic Sensor Based on Giant Magneto-Impedance Effect of Fe-based Alloy Thin Ribbon

作　　者：何理[1] 郑金菊[1] 金林枫[1] 叶慧群[1] 

机构地区：[1]浙江师范大学电子信息技术研究所,浙江金华321004

出　　处：《磁性材料及器件》2009年第6期40-43,共4页Journal of Magnetic Materials and Devices

基　　金：国家自然科学基金资助项目(50871104);浙江省大学生创新创业孵化项目(ZC316009004)

摘　　要：利用Fe基合金薄带的巨磁阻抗效应和LC谐振回路特性,研制了一款新型巨磁阻抗磁敏传感器。文中介绍了Fe基合金薄带的巨磁阻抗特性、传感器的电路设计和实验数据分析。实验结果表明,该传感器具有重复性好(最大偏差为0.32%)、几乎无迟滞(最大偏差为0.19%)、线性度好(最大偏差为1.04%)且线性测量范围广(464.86～1488.52A/m)等优点,在磁场检测和位移测量领域具有广泛的应用前景。A new kind of GMI magnetic sensor based on giant magneto-impedance effect of Fe-based alloy thin ribbon and characteristics of LC resonant circuit was developed. The GMI properties of Fe-based alloy thin ribbon, circuit design of sensor and data analysis of experiment were presented. The experimental results turned out that the sensor has good repeatability （maximum deviation is 0.32%）, almost no hysteresis （maximum deviation is 0.19%）, good linearity （maximum deviation is 1.04%） and a wide range of linear measurement （464.86-1488.52 A/m）, etc. The sensor can be widely used in magnetic field detection and displacement measurement.

关 键 词：Fe基合金薄带 巨磁阻抗效应 磁传感器 

分 类 号：TP212.13[自动化与计算机技术—检测技术与自动化装置]