摘要
基于软磁非晶材料巨磁阻抗(giant magneto impedance,GMI)效应的传感器是近年来磁传感器领域的研究热点之一。GMI磁传感器具有微型化、高灵敏度、快速响应、高温度稳定性和低功耗等特点,在微弱磁场检测方面,具有广阔的应用前景。而高灵敏度与低噪音对GMI传感器尤为重要。然而,由于GMI效应及应用是近十几年刚刚发展起来的新领域,人们更多的关注GMI效应的基础理论研究,而GMI传感器相关理论研究相对较少。基于此,一方面介绍了GMI磁传感器灵敏度和噪声的国内外研究现状,同时介绍了GMI传感器的应用情况。
Magnetic field sensor based on giant magneto impedance（GMI）effect in soft magnetic amorphous wire is one of the highlights recently.GMI magnetic sensors have the characteristics of miniaturization,high sensitivity,fast response,high temperature stability and low power consumption,which have widely applied prospects,especially in the weak magnetic fields detection.Therefore,the high sensitivity and low noise of sensor are particularly important to GMI applications.However,most of the researches focus on the basic theory of GMI effect and few attentions have been taken on the control of sensitivity and noise of GMI sensors because the GMI effect and its application is a new developing field recently.In this paper,the research status on sensitivity and noise of GMI magnetic sensors are introduced and the application of GMI sensors is also presented.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2017年第11期11032-11036,共5页
Journal of Functional Materials
基金
宁夏高等学校科研项目(NGY2015056)
宁夏大学博士科研启动基金(BQD2014019)
关键词
巨磁阻抗效应
电压噪声
灵敏度
giant magneto-impedance effect
voltage noise
sensitivity
作者简介
韩自强（1989-）,男,山东济宁人,在读硕士,,师承张树玲副教授,主要从事GMI传感器优化设计.;通讯作者：张树玲,E-mail：slzhang1229@163.com
