非晶软磁合金在传感器中的应用

The Application of Amorphous Soft Magnetic Alloy in Sensor's Elements

  • 摘要: 研究了传感器敏感元件的高磁致伸缩Fe基、零磁致伸缩Co基非晶带和非晶丝的微压力探测性能、磁场与位移探测性能、Wiegand型尖锐脉冲电压性能。Fe基非晶带环形铁芯具有良好的线性度,灵敏度高达2.7V/N。Co基非晶带磁场及位移探测元件灵敏度为14mV/A·m-1,位移探测灵敏度达30mV/mm,线性探测范围达100mm左右。

     

    Abstract: The properties of the Wiegand-type sharp voltage pulses and detectment of the small pressures,the static magnetic field and the displacement have been reaserched for the highly magnetostrictive Fe-based amorphous ribbons and wires,low or zero magnetostrictive Co-based ribbons and wires used for sensor's elements.The Fe-based amorphous ribbon-woud cores have good linearity and very high sensitivity.The sensitivity to pressure is high as 2.7V/N.Cobaese amorphous ribbons have good linearly and sensitivity (14mV/A·m-1).The sensitivity to displacement is 30mV/mm,and the linear range is about 100mm

     

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