| 摘要 |
A sensor assembly ( 10 ) for measuring a speed of a movable member. The sensor assembly ( 10 ) includes an enclosure ( 28 ) defining a cavity ( 30 ). The cavity ( 30 ) is defined by a blind hole extending into the enclosure ( 28 ). The enclosure ( 28 ) is positioned so as to be substantially stationary relative to the movable member. A sensor element ( 36 ) is received within the cavity ( 30 ) and is disposed to sense movement of the movable member. When the sensor element ( 36 ) is received within the cavity ( 30 ), a portion of the enclosure ( 28 ) is interposed between the sensor element ( 36 ) and the movable member. A seal ( 38 ) is operatively coupled to the sensor element ( 36 ) for substantially excluding contaminants from the cavity ( 30 ). A securement mechanism may be provided comprising a latch member ( 44 ) coupled to one of the sensor element ( 36 ) and the enclosure ( 28 ), and a complementary locking tab ( 46 ) coupled to the other one of the sensor element ( 36 ) and the enclosure ( 28 ) for engaging the latch member ( 44 ) to secure the sensor element ( 36 ) within the cavity ( 30 ). In a particular embodiment, a sensor assembly ( 10 ) as described herein is incorporated into a wheel bearing assembly ( 12 ) including a non-rotatable member ( 14 ) and a rotatable member ( 16 ) rotatably coupled to the non-rotatable member. In this embodiment, the sensor assembly ( 10 ) is coupled to the non-rotatable member ( 14 ) so as to be substantially stationary relative to the rotatable member ( 16 ).
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