ELECTROSTATIC VOLTAGE COMPARATOR Russian patent published in 1997 - IPC

FIELD: radio engineering. SUBSTANCE: electrostatic voltage comparator includes mobile part in the form of horizontal beam of type of balance. Edges of beam carry mobile electrodes of multichamber cylindrical capacitors and immobile electrodes mounted for control of capacitance rigidly coupled to base of comparator. Base is arranged in parallel to beam. Attachment members of beam provide for rotation of beam and its stability to transverse oscillations. Two photoelectric converters are so connected that with deviation of beam from horizontal position output signal from two photoelectric converters is summed up and amplified and output signal of amplifier is not amplified with transverse oscillations of mobile part. Equality of voltages is found by zero reading of null indicator connected to output of amplifier. EFFECT: enhanced functional stability. 2 cl, 2 dwg