Patent ID: 6116076
Filing Date: 2000-09-12
Classification: G01N

Abstract:
A method for determining static and kinetic frictional coefficients of the interface between a sample of a sheet material and a test medium, said method comprising:fixing the test medium to a substantially horizontal platen;fixing the sample of sheet material to a sled;providing two spaced, parallel movable rails coupled to an automated reversible raising and lowering means for raising and lowering said sled relative to said platen;lowering said sled onto said platen by lowering said parallel movable rails using said automated raising and lowering means such that the sample comes into engagement with the test medium;translating said sled relative to said platen;measuring the forces required to translate said sled relative to said platen; andcalculating the frictional coefficients based on the measured forces and the weight of said sled.