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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

, PP. 21-26

Keywords: 输出电压模型,螺旋磁场,魏德曼效应,磁致伸缩

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Abstract:

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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