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    • 2. 发明公开
    • 포지션 센서
    • 位置传感器
    • KR1020070069145A
    • 2007-07-02
    • KR1020077006368
    • 2006-05-12
    • 파나소닉 전공 주식회사
    • 니와마사히사이노오카유키코미쓰타케요시오오타도모히로
    • G01D5/20
    • G01D3/02G01D5/2013
    • Provided is a position sensor excellent in the linearity of a coil impedance. This position sensor includes a cylindrical detection coil, a core movable in the detection coil, a signal processing circuit for converting the impedance change of the detection coil into an electric signal, and a shield member arranged around the detection coil. The shield member is a cylindrical member having a first inner surface enclosing an axial section of the detection coil, and a second inner surface enclosing another axial section of the detection coil, such that the distance between the second inner surface and the detection coil is made shorter than the distance between the first inner surface and the detection coil.
    • 提供了线圈阻抗的线性优异的位置传感器。 该位置传感器包括圆柱形检测线圈,可在检测线圈中移动的芯,用于将检测线圈的阻抗变化转换成电信号的信号处理电路,以及围绕检测线圈布置的屏蔽部件。 屏蔽构件是具有包围检测线圈的轴向部分的第一内表面和封闭检测线圈的另一轴向部分的第二内表面的圆柱形构件,使得第二内表面和检测线圈之间的距离被制成 比第一内表面和检测线圈之间的距离短。