| http://www.w3.org/ns/prov#value | - These objects and others are achieved by providing a torque/power sensor for rotating shafts comprising a magnetoelastically active element for creating a magnetic field indicative of the torque applied to the shaft, field modulating means for modulating the magnetic field in a periodic manner indicative of the speed of shaft rotation, and a magnetic sensor, such as a Hall effect sensor or coil, r
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