Fe基合金薄带GMI效应与驱动线圈直径关系的研究  

Study on the Relationship between the Giant Magneto-Impedance Effect of Fe-Based Alloy Strips and the Diameter of Drive Coil

作　　者：王丽梅 王卓 陆轩昂 范晓珍[1] 叶慧群[1] 郑金菊[1] 方允樟[1] 

机构地区：[1]浙江师范大学物理与电子信息工程学院,浙江 金华

出　　处：《传感器技术与应用》2021年第2期35-40,共6页Journal of Sensor Technology and Application

摘　　要：本文研究了Fe基(Fe73.5Cu1Nb3Si13.5B9)合金薄带为磁芯的驱动线圈的巨磁阻抗效应与驱动线圈直径之间的关系。结果表明,驱动线圈的直径是影响Fe基磁芯驱动线圈巨磁阻抗效应的重要因素。驱动线圈直径越小,巨磁阻抗效应越明显,且随着驱动线圈直径的增大,磁芯驱动线圈的最大阻抗比(ΔZ/Z)max呈现指数性降低;磁芯驱动线圈在低频时,对频率的变化响应非常灵敏;磁芯与驱动线圈的占空比与磁芯驱动线圈最大阻抗比(ΔZ/Z)max之间存在指数增大关系。The relationship between the giantmagnetic-impedance effect and the diameter of drive coil with the Fe based (Fe73.5Cu1Nb3Si13.5B9) alloy strips as the magnetic core is studiedin this paper. The results show that the diameter of drive coil is an importantfactor affecting the giant magneto-impedance effect of Fe-based alloy strips.The smaller the diameter of drive coil is, the more obvious the giantmagneto-impedance effect is. And the maximum impedance ratio (ΔZ/Z)max of the magnetic core drive coil decreasesexponentially with the increase of the diameter of the magnetic core drivecoil. When the magnetic core drive coil is at low frequency, the response tothe change of the frequency is very sensitive. There is an exponential increaserelationship between the cross-sectional area ratio of magnetic core to thedrive coil and the maximum impedance ratio (ΔZ/Z)max of the magnetic core drive coil.

关 键 词：磁性材料 驱动线圈 驱动频率 巨磁阻抗效应 占空比 

分 类 号：TG1[金属学及工艺—金属学]