GENERATOR CONVERTER Russian patent published in 1998 - IPC

FIELD: EQUIPMENT FOR CHECKING VIBRATION OF PARTS. SUBSTANCE: converter has parallel resonance-tuned circuit whose first lead is connected to common bus and second one, to amplifier input, current inverter whose power circuit is connected in series with amplifier. Current inverter output is connected to amplifier input. Amplifier is built around field-effect transistor whose source is connected through bias circuit to first lead of parallel resonance-tuned circuit and gate is connected to second lead of this circuit. Resistor is inserted in drain circuit of field-effect transistor in series with power circuit of current inverter. EFFECT: provision for obtaining output signal proportional to Q-factor of parallel resonance-tuned circuit; improved noise immunity and accuracy of equipment. 1 dwg