Patent ID: 6512365
Filing Date: 2003-01-28
Classification: F16C,G01P

Abstract:
In combination with a housing that contains a hole having a generally cylindrical wall and with a target wheel that rotates within the housing and has discontinuities, a sensor which detects movement of discontinuities on the target wheel as a consequence of rotation of the target wheel and produces a signal which reflects the angular velocity of the target wheel, the sensor comprising; a bushing located within the hole and having a leading surface and trailing surface, both of which are presented toward the surface of the hole, with clearances between the leading and trailing surfaces and the surface of the hole, the leading surface having a diameter greater than the trailing surface and being closer to the target wheel than the trailing surface, the bushing also having a groove located between the leading and trailing surfaces where it opens toward the surface of the hole; an annular elastomeric element contained within the groove of the bushing between the leading and trailing surfaces and being compressed between the bushing and the surface of the hole; and a probe extended from the bushing beyond the leading surface and into the interior of the housing, the probe having a pickup area that is presented toward the target wheel.