Patent ID: 6766696
Filing Date: 2004-07-27
Classification: G01N

Abstract:
A coating adhesive strength and shear strength measuring apparatus for cutting a coating of a test piece with a cutting knife, measuring a force vertical to the coating and a force parallel to the coating which both are exerted on the cutting knife, and calculating adhesive strength and shear strength of the coating, comprising:a stage arranged to be movable in vertical and parallel directions relative to the coating; a vertical pressure sensor for measuring the vertical force exerted on the cutting knife, the vertical pressure sensor having a first end and a second end and being linked at the first end to the stage; a parallel pressure sensor for measuring the parallel force exerted on the cutting knife, the parallel pressure sensor having a first end and a second end and being fixedly linked at the first end to the second end of the vertical pressure sensor such that the first end of the parallel pressure sensor is fixed relative to the second end of the vertical pressure sensor; and the cutting knife being linked to the second end of the parallel pressure sensor.