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    • 85. 发明授权
    • Non-contact rotational angle detecting sensor
    • 非接触式旋转角检测传感器
    • US08106648B2
    • 2012-01-31
    • US12289876
    • 2008-11-06
    • Shunichi Sato
    • Shunichi Sato
    • G01B7/30
    • G01D5/14
    • There is provided a non-contact rotational detecting sensor comprising a ring-shaped permanent magnet which rotates integrally with a detection object of a rotational angle and of which a magnetic pole changes along the circumferential direction, a ring-shaped inside magnetic flux collecting yoke for surrounding an outer peripheral surface of the ring-shaped permanent magnet in a constant gap, a ring-shaped outside magnetic flux collecting yoke for surrounding an outer peripheral surface of the ring-shaped inside magnetic flux collecting yoke in a constant gap, and a hole IC arranged in a gap formed in the ring-shaped inside magnetic flux collecting yoke, wherein an axial height of the ring-shaped inside magnetic flux collecting yoke is changed along a circumferential direction of the ring-shaped inside magnetic flux collecting yoke.
    • 提供了一种非接触式旋转检测传感器,包括与旋转角检测对象一体旋转并且磁极沿圆周方向变化的环形永磁体,环形内磁通集合磁轭,用于 围绕环形永久磁铁的外周面以恒定的间隙围绕环状的内部磁通收集磁轭的外周面以恒定的间隙包围的环状的外部磁通收集磁轭, IC布置在形成在环形内部磁通集合磁轭中的间隙中,其中环形内部磁通集流磁轭的轴向高度沿着环形内部磁通集合磁轭的圆周方向改变。