Torque measuring method for determining torque acting on rotating shaft of machine or system e.g. ship propulsion system by using magnetoresistive sensors

摘要

The method involves using the magnetoresistive effect to remotely detect the torsion of the shaft between two or more axially spaced-apart points, resulting from a torque acting on the shaft in the torsional elastic region. Magnetic-field generating elements are attached to the shaft circumference at each measuring plane. Changes in length of the magnetic field lines indicate the torsion of the shaft between the measuring planes.