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首页> 外文期刊>Japanese journal of applied physics >Design of Element Configuration on Magnetic Rotation Angle Sensor with Spin-Valve Film
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Design of Element Configuration on Magnetic Rotation Angle Sensor with Spin-Valve Film

机译:自旋阀膜磁旋转角传感器的元件配置设计

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摘要

To reduce the error of a magnetic rotation angle sensor, we investigated the effect of sensor element configuration on the output signal of the sensor by using numerical calculations. The sensor elements were made of spin-valve films with a large shape-induced anisotropy. The magnetization of elements was calculated by minimizing the magnetic energy in a framework of the Stoner-Wohlfarth model. The sensor response was calculated as a function of the relative angle between the spin-valve elements. The error of signals was minimized when the relative angle was 99.5°. It is clear that this configuration is robust against the variation of shape-induced anisotropy.
机译:为了减少磁性旋转角度传感器的误差,我们使用数值计算方法研究了传感器元件配置对传感器输出信号的影响。传感器元件由具有大形状诱导各向异性的自旋阀膜制成。元素的磁化强度是通过在Stoner-Wohlfarth模型的框架内最小化磁能来计算的。计算传感器响应作为旋转阀元件之间相对角度的函数。当相对角度为99.5°时,信号误差最小。显然,这种构造对于抵抗形状引起的各向异性的变化是鲁棒的。

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  • 来源
    《Japanese journal of applied physics》 |2010年第4issue1期|P.043001.1-043001.3|共3页
  • 作者单位

    Advanced Electronics Research Laboratory, Hitachi Metals, Ltd., Kumagaya, Saitama 360-0843, Japan Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan;

    rnAdvanced Electronics Research Laboratory, Hitachi Metals, Ltd., Kumagaya, Saitama 360-0843, Japan;

    rnGraduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan;

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