VOLTAGE-TIME INTERVAL TRANSDUCER Russian patent published in 1994 - IPC

FIELD: digital measurement technology. SUBSTANCE: digital transducer has integrator made in the form of d. c. amplifier 7 with feedback circuit capacitor 8 with output connected with input of null-detector 9, input switch of measured and reference signals containing keys 1, 2, 3 and connected to first input of integrator via resistors 4, 5, 6, zero drift compensation unit made in the form of key 10 with input connected via resistor 11 to second input of integrator and to storage capacitor 12, additional zero drift compensation unit similar to the basic one and cut in between input and output of null-detector 9. EFFECT: improved accuracy. 2 cl, 1 dwg