Brake tester and method of using same

Details Brake tester and method of using same Brake tester and method of using same

1998-07-13

2000-08-22

Noori, Max

Measuring and testing

Brake testing

73129, G01L 528

Patent

active

061054224

ABSTRACT:
A brake tester which is capable of mapping the position of the brake shoe in its extended position. The tester includes a plurality of sensors which are mounted about the brake assembly. The sensors are capable of measuring the distance between the sensor and the brake shoe. In the preferred embodiment, laser sensors are rotated about the brake assembly while the brake shoe is fully extended. The sensed signal is recorded and compiled to generate a mapping of the brake shoe. Alternatively, a plurality of stationary capacitive proximity sensors are disposed about the brake shoe generating a distance signal indicative of the distance between the brake shoe and a simulated drum surface. Such mapping tests for accurate displacement of the brake shoe can predict premature shoe wear and particular wear zones. A secondary function maps the entire surface of the brake shoe lining/friction pad when initial contact is made with the drum surface using the laser sensor.

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patent: 5372221 (1994-12-01), Jalbert
patent: 5497101 (1996-03-01), Fillion
patent: 5632359 (1997-05-01), Camps et al.

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