FIELD: measurement technology. SUBSTANCE: invention can be used for graphic control over character of nonuniformity of distribution of torque of active and braking torque of passive rotating objects in the course of rotation time. Proposed aid has torsion shaft meant for insertion into investigated kinematic circuit. Disc with ring made from magnetic material is put on shaft. Two universal magnetic heads to record and read magnetic marks are set in opposition to ring. Angular movement of shaft is determined by magnetic marks. Shaft also carries sleeve which edge is made in the form of serrated teeth. Cylindrical ferromagnetic carriage with family of circle-symmetric fingers-pushers contacting faces of teeth is put on shaft. Moment on shaft is found by axial movement of carriage with the aid of differential induction transducer with three-leg magnetic core. Dependence of moment of moment of shaft on angle of turn of shaft is displayed on screen of cathode-ray tube. Advantage of aid lies in invariability of scale of channel of vertical deflection of ray with change of power modes and rotation speed of investigated objects and automatic calibration of channel of horizontal deflection of ray. EFFECT: improved functional reliability of aid. 3 dwg
