惠斯通电桥式磁阻传感器的零位温度漂移研究  

Study on Temperature Drift of Offset for Full-Bridge Magneto Resistive Sensors

作　　者：于向前[1] 刘斯[2] 肖池阶[3] 曲亚楠 宗秋刚[1] 陈鸿飞[1] 邹鸿[1] 施伟红[1] 王永福[1] 陈傲 宋思宇 高爽 邵思霈 YU Xiangqian;LIU Si;XIAO Chijie;QU Yanan;ZONG Qiugang;CHEN Hongfei;ZOU Hong;SHI Weihong;WANG Yongfu;CHEN Ao;SONG Siyu;GAO Shuang;SHAO Sipei(School of Earth and Space Sciences,Peking University,Beijing 100871;School of physics and Electronic Science,Changsha University of Science&Technology,Changsha 410114;School of Physics,Peking University,Beijing 100871;Institute of Shandong Aerospace Technology,Yantai 264003)

机构地区：[1]北京大学地球与空间科学学院,北京100871 [2]长沙理工大学物理与电子科学学院,长沙410114 [3]北京大学物理学院,北京100871 [4]山东航天电子研究所,烟台264003

出　　处：《北京大学学报（自然科学版）》2021年第3期401-406,共6页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：风云三号03批空间环境监测器分系统磁阻磁强计项目;国家重大科技基础设施(8201701679)资助。

摘　　要：基于惠斯通电桥式磁阻传感器4个电阻元件存在温度差异的事实,提出一个惠斯通电桥式磁阻传感器零位温度漂移的简明准线性模型。在MATLAB环境下,准线性模型的仿真结果与实验结果吻合,验证了准线性模型的有效性,为解释惠斯通电桥型磁阻传感器零位温度漂移的原因提供了清晰的思路,此模型也可应用于其他具有惠斯通电桥结构的传感器。A concise quasi-linear model of the temperature offset for full Wheatstone-type bridges magneto resistive sensors is proposed based on the temperature-dependent of resistivity of four elements.In MATLAB environment,the simulation results of quasi-linear model agree well with the experimental results,indicating that the quasi-linear model is simple but efficient for the offset calibration,can explain the causes of the temperature offset for full Wheatstone-type bridges magneto resistive sensors,and can be applied to other sensors with full Wheatstone-type bridges structure.

关 键 词：惠斯通电桥结构 磁阻传感器 零位温度漂移简明模型 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]