Brake testing apparatus

Details Brake testing apparatus Brake testing apparatus

G - Physics

01

L

73/158

G01L 5/28 (2006.01) G01L 3/16 (2006.01)

Patent

CA 1108434

ABSTRACT OF THE DISCLOSURE A brake testing apparatus comprises at least one pair of motor-driven rollers on which a wheel having a brake to be tested is mounted. A leaf spring is attached at one end to the motor stator and its free end is held between opposed abutments so that when the wheel is braked, a reverse torque in the stator induces a stress in the leaf spring. Strain gauges are provided on opposite surfaces of the spring to sense the induced stress, the strain gauges being formed as a Wheatstone bridge arrangement connected in an electric circuit which measures the induced stress as a function of the bridge imbalance.

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