Electricity: measuring and testing – Electrical speed measuring – Including speed-related frequency generator
Patent
1989-03-02
1991-04-09
Snow, Walter E.
Electricity: measuring and testing
Electrical speed measuring
Including speed-related frequency generator
32420725, 324262, G01P 348, G01P 354, G01B 714, G01R 3300
Patent
active
050067974
ABSTRACT:
An improved sensor assembly for providing an electrical signal representative of the velocity of a movable body. The assembly includes a sensor for sensing the velocity of the body and providing the signal and a mounting block disposed close to the body for locating the sensor in a predetermined position with respect to the body. The mounting block has a passageway extending through the block for receiving the sensor and for restricting the movement of the sensor along a direction co-existent with respect to the longitudinal axis of the sensor. The sensor itself includes an elongated barrel portion having a sensing tip in one end. The elongated barrel portion includes a shoulder stop located along the elongated barrel portion at a predetermined position from the end of the elongated barrel portion having the sensing tip. The assembly further includes a nosepiece attached to the mounting block which abuts against the shoulder stop of the sensor, thereby restricting the movement of the sensor along the direction co-existent with respect to the longitudinal axis of the sensor to a predetermined position from the body. Thus, once the mounting block has been initially installed, the sensor itself can be replaced without the necessity for recalibrating the sensor assembly.
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