螺旋磁场作用下磁致伸缩位移传感器的输出电压模型及实验

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摘要基于魏德曼效应和压磁效应建立了螺旋磁场作用下磁致伸缩位移传感器的输出电压模型,计算了磁致伸缩位移传感器的输出电压.计算结果表明输出电压与螺旋磁场间存在线性关系.当激励磁场与偏置磁场均为3kA/m,螺旋磁场强度为4.24kA/m时,输出电压的计算值达到18.09mV,计算结果与实验结果的变化趋势一致,数值基本吻合,表明了建立的输出电压模型的正确性.基于建立的模型,可以确定传感器激励磁场与偏置磁场的范围,研究可为磁致伸缩位移传感器的优化设计提供理论基础与指导.

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关键词 ：输出电压模型, 螺旋磁场, 魏德曼效应, 磁致伸缩

Abstract：The output voltage model of magnetostrictive displacement sensor has been founded based on the theory of Wiedemann effect and piezomagnetic effect. By this model, we can calculate the output voltage of sensor under helical magnetic field. It is found that there is a certain linear relationship between the output voltage and helical magnetic field. The calculating output voltage can be achieved to 18.09mV when the excitation magnetic field is equal to the bias magnetic field of 3kA/m and the helical magnetic field is 4.24kA/m. The accuracy and validity of the output voltage model has been validated with the consistence between the experimental data and calculating data. It helps to decide the optimal value of parameters including the excitation magnetic field and bias magnetic field intensity. This model provides a theoretical guidance for reasonable designing of the sensor structure.

Key words： Output voltage model helical magnetic field wiedemann effect magnetostriction

收稿日期: 2014-12-24 出版日期: 2015-09-14

PACS:

TP212

基金资助:国家自然科学基金(51171057,51201055),河北省引进留学人员资助项目(CG2013003001),河北省高等学校科学技术研究重点项目,(ZD2015085)和天津市高等学校科技发展基金(20140421)资助项目

作者简介: 张露予女,1989年生,博士研究生,研究方向为磁性材料与器件.王博文男,1956年生,教授,博士生导师,本文通讯作者,研究方向为磁性材料与器件.

引用本文:

张露予,王博文,翁玲,孙英,王鹏. 螺旋磁场作用下磁致伸缩位移传感器的输出电压模型及实验[J]. 电工技术学报, 2015, 30(12): 21-26. Zhang Luyu,Wang Bowen,Weng Ling,Sun Ying,Wang Peng. The Output Voltage Model of Magnetostrictive Displacement Sensor in Helical Magnetic Fields and Its Experimental Study. Transactions of China Electrotechnical Society, 2015, 30(12): 21-26.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I12/21

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