FIELD: measurement equipment.
SUBSTANCE: device comprises two differential measurement tanks, a source of reference voltage, a pair of keys of measurement tank charging, a clock pulse oscillator, a voltage inverter, a pair of keys for signal pickup from measurement tanks and a low pass filter. The full cycle of device operation is carried out in two strokes of sync pulses: during the first stroke both measurement tanks are charged from the source of reference voltage via the first pair of keys. During the second stroke both measurement tanks are simultaneously discharged, via the second pair of keys, to a low pass filter, which generates a signal of appropriate value and polarity.
EFFECT: increased accuracy.
1 dwg
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