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 with radial slots on its end face filled up with lubricating . 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. One part of workpiece has a contact with a part of grinding wheel provided with radial grooves, second part has a contact with other working face of the wheel. EFFECT: enhanced accuracy of measuring. 2 dwg _