METHOD OF MEASURING THE THICKNESS OF LUBRICATING FILM IN GRINDING Russian patent published in 2001 - IPC

FIELD: mechanical engineering. SUBSTANCE: method includes measuring electrical signal in place of contact of workpiece with dielectric rods connected with an electronic amplifier through resistances. The workpiece is provided with a groove, dividing the workpiece surface into two equal parts. The workpiece is forced to be in contact with grinding wheel rotating at a high speed. The working surface of the grinding wheel is provided with a circular groove dividing it into two equal parts. Each part is provided with dielectric rods. Before measuring, the surface of one of the workpiece part or wheel is provided with a lubricant. EFFECT: enhanced accuracy of measuring. 2 dwg