| 摘要 |
A sensor head (111) is provided for use in an apparatus for indicating the position of a movable member relative to a fixed member, having two multi-turn sensor windings (133 and 135), each comprising a repetitive pattern of series connected alternate sense loops of conductor. Sensor winding (135) is in spatial phase quadrature with sensor winding (133), and the arrangement of the windings is such that the mid points of the sensor windings (133 and 135) coincide. The sensor head is particularly suited for use in indicating the position of a movable member relative to a fixed member as it is relatively insensitive to longitudinal tilt relative to the other member.
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