基于GMI效应的磁传感器研究与发展现状

巨磁阻抗(GMI)效应的出现,使磁传感器在弱磁检测领域的小型化、高灵敏度、快速响应和低功耗方面成为可能,基于GMI效应的磁传感器具有广泛的应用发展前景,是近年来磁传感器领域的研究热点之一.本文从不同敏感材料类型的角度介绍了巨磁阻抗磁传感器的国内外研究现状,着重对传感器的敏感材料、结构形式、处理电路及性能做了介绍,并指出...

Research and development of magnetic sensors based on GMI

With the emergence of the giant magneto-impedan ce （GMI） effect, the miniaturization, high sensitivity, quick response,and lower power consumption of the magnetic sensor in the field of weak magnetic measurement become possible. The magnetic sensor based on GMI effect has broad application prospects, and it becomes one of the hot points on magnetic sensor research in recent years. On the point of material, the research and development of magnetic sensors based on GMI are introduced in this paper,which focuses on the sensitive material,structure,processing circuit and performance of these GMI sensors are proposed specially. Finally, the existing problems and developing trend of GMI sensors in future are indicated,which provide a useful reference for the realization of giant magneto-impedance sensor.