FIELD: instrument industry.
SUBSTANCE: device comprises capacitive pickup of rotor position, phase-shifting device, output stage with controllable transmission coefficient, and capacitive moment pickup , which are connected in series. The rectifier and controller interconnected in series are connected between the output of the capacitive pickup of rotor position and input for control of transmission coefficient of the output stage. The correcting circuit is connected between the output of the capacitive pickup of rotor position and input of the rectifier.
EFFECT: enhanced precision.
2 cl, 2 dwg
