FIELD: measurement technology, determination of position of object in control systems. SUBSTANCE: in compliance with first variant gear includes generator of alternating voltages with inductance coils located on object, three-component sensor, three amplifiers of alternating voltages, three converters, former of reference voltages and commutator. In agreement with second variant gear additionally has two three-component sensors, six amplifiers of alternating voltages and six converters. EFFECT: realization of contactless communication between receiving and sending devices with their simplification. 2 cl, 4 dwg
