Biaxial force measurement methods and apparatus, and their application to the determination of tensile force and fluctuating angle runout in a continuous web

摘要

PCT No. PCT/SE95/01422 Sec. 371 Date May 16, 1997 Sec. 102(e) Date May 16, 1997 PCT Filed Nov. 28, 1995 PCT Pub. No. WO96/17233 PCT Pub. Date Jun. 6, 1996The present invention relates to a method and a device for two-shaft force measurement and its application to the determination of tensile force in a continuous web. The device comprises a force-introducing part (4) with two force-measuring parts A and B for determining the forces FA and FB, and the force is applied in a torque-free manner around a center of force via a device (3), for example in the form of a deflector roll journalled in bearing brackets (3) placed on the force-introducing part, and wherein the force-measuring parts, due to their built-in design, measure forces FA and FB in directions directed through angles +/- phi from a mean measurement direction, and wherein the force-measuring parts A and B are placed at the same distance L on different sides of a plane parallel to the mean measurement direction and through said center of force, and wherein the force-measuring parts A and B are placed at a distance h on the same side of a plane perpendicular to the mean measurement direction and through said center of force (FIG. 2).