Force Application

A measured component needed to determine static coefficient of friction is applied frictional force. This will be accomplished by applying a torque to the shaft which is connected to the grippers holding the ball. The original method was to implement a motor to apply the torque on the ball. By knowing the voltage, current and the point in time where the ball begins to slip a stall torque could be calculated. However it was deemed that the control over the input voltage and current were not sufficient to implement. We are now in the redesigning phase for this component. The accepted idea is to attach a torque arm to the shaft where at the end weights could be added so the force can be measured.

Sketch of torque arm method