DEVICE FOR MEASURING TORQUE CONTACTLESSLY BY EDDY CURRENT

摘要

PURPOSE: A contactless torque measuring device by an eddy current is provided to reduce the volume of the device by removing a slip ring, a driving motor and a controller of a contact-type torque measuring device, and maintain the linearity and resolution of a strain gauge and the precision of calibration, thereby reducing the non-linear errors in the indirect measurement. CONSTITUTION: A contactless torque measuring device by an eddy current includes a rotator(10) mounted rotatably by an object(1) to measure, a stator(20) for forming magnetic fields passing through the rotating rotator to generate a load torque contactlessly, a bending beam(30) mounted at an end of the stator to be bended by the load torque applied to the stator for maintaining an equilibrium state with a load of the object, and a strain gauge(40) mounted at an end of the bending beam for sensing the bending degree to measure the torque.