INFLUENCE OF CROSS FORCES AND BENDING MOMENTS ON REFERENCE TORQUE SENSORS FOR TORQUE WRENCH CALIBRATION

Abstract − Effects of disturbing components on reference torque sensors – transducers and torque wrenches – in torque wrench calibration facilities are discussed. Different mounting conditions during the superior calibration of these sensors and their application in the torque wrench calibration machine induce deviations in the sensitivity and affect the best measurement capability of the machines. With standard sensors and mounting situations, methods for investigating and estimating possible effects of cross forces and bending moments are presented.