Transducer for measuring torque and/or speed of rotating shaft

摘要: A magnetic transducer fits over and encompasses a rotatable shaft has primary or excitation assembly having winding arrangement that is energized to provide a-c for producing an alternating flux field, adjacent within the shaft, which modified as torsionally stressed when torque applied thereto. This stressing causes compression tension in alter permeability thus vary pattern shaft. The resulting field also function of speed due shaft's armature reaction, eddy currents being generated develop counter opposes distorts produced by arrangement. pair secondary pick-up assemblies, windings, respond information signals relative characteristics rotating size, weignt, cost complexity are substantially reduced constructing three assemblies so windings effectively wrapped around with turns sharing same axis, thereby parallel Relatively short poles extend radially inwardly from toward control paths maximize amount passing through