巨磁阻抗微型磁强计技术研究

王江涛; 潘海林; 张清

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投稿时间：2019-04-29 修订日期：2019-04-29

中文摘要: 针对未来微卫星、纳卫星及皮卫星平台的应用需求，介绍了一种基于巨磁阻抗（GMI）效应的微型化三轴磁强计。微型化三轴磁强计采用非线性非对角化巨磁阻抗效应原理制备敏感元件；采用相敏检波方式设计信号处理电路，并对磁强计电路进行了集成化芯片工艺的设计研发。研制的样机在±500mGs磁场下的输出为0~5V。0.1~10 Hz频率范围内的噪声小于RMS 200 pT；频谱密度噪声小于20pT/√("Hz" )@1Hz。

中文关键词: 磁强计巨磁阻抗集成芯片 GMI

Abstract:In order to meet the application requirements of microsatellite, nano-satellite and pico-satellite platforms in the future, a miniaturized three-axis magnetometer based on giant magneto-impedance (GMI) effect is introduced. The miniaturized triaxial magnetometer fabricates sensitive elements based on non-linear non-diagonal giant magneto-impedance effect, using phase-sensitive detection method to design signal processing circuit, and developing the circuit chip which integrates the circuit of the miniature magnetometer. The output of prototype is 0~5V during ±0.5Gs magnetic field. The noise in 0.1~10 Hz frequency range is less than RMS 200 pT, and the spectrum density noise is less than 20pT/√("Hz" )@1Hz.

keywords: magnetometer giant magneto impedance integrated chip GMI

文章编号：20190429004 中图分类号： 文献标志码：

基金项目:

作者	单位	E-mail
王江涛^*	华东师范大学计算机科学与软件工程学院?上海?200062	jtwang@sei.ecnu.edu.cn
潘海林	华东师范大学计算机科学与软件工程学院·上海·200062
张清	华东师范大学计算机科学与软件工程学院?上海?200062

Author Name	Affiliation	E-mail
WANG Jiangtao	School of Computer Science and Software Engineering, East China Normal University	jtwang@sei.ecnu.edu.cn
PAN Hailin	School of Computer Science and Software Engineering, East China Normal University, Shanghai 200062
ZHANG Qin	School of Computer Science and Software Engineering, East China Normal University, Shanghai 200062

引用文本：
王江涛,潘海林,张清.巨磁阻抗微型磁强计技术研究[J].飞控与探测,2019,(2):59-63.