FIELD: measuring technique.
SUBSTANCE: device comprises differential capacitive pickup, two resistive amplifiers whose inputs are connected with the outputs of the differential capacitive pickup, differential amplifier whose inputs are connected with the outputs of the resistive amplifiers, generator of alternative voltage whose output is connected with the movable mass, demodulator whose first input is connected with the output of the differential amplifier and the second input is connected with the generator of alternative voltage through the phase-shift device, adder, device with changeable transmission coefficient, and rectifier whose input is connected with the output of the adder. The inputs of the adder are connected with the outputs of the resistive amplifiers. The output of the rectifier is connected with the input for the measurement of the transmission coefficient of the device whose input is connected with the output of demodulator.
EFFECT: simplified structure.
1 cl, 2 dwg
