Patent ID: 9063051
Filing Date: 2015-06-23
Classification: B60T,G01N

Abstract:
1. A friction mensuration device, comprising: a drive unit having at least one controllable motive member coupled to the drive unit, configured to receive a controllable propulsion force, and configured to apply tractive force to a test piece on a surface responsive to the controllable propulsion force; a force engine coupled to the at least one controllable motive member, and configured to apply the controllable propulsion force to the at least one controllable motive member; a controller coupled to the force engine, and imposing a propulsion control signal to the force engine, the propulsion control signal actuating the force engine to produce the controllable propulsion force; and a force sensor coupled between the drive unit and the test piece, the force sensor producing a force signal responsive to a sensed force between the drive unit and the test piece, wherein a sensed force measurement representative of a stiction force is rejected, and wherein the drive unit is intrinsically calibrated to the Normal force.