FIELD: instrumentation.
SUBSTANCE: bridge meter comprises generator, four-branch bridge circuit and zero-indicator. Claimed generator consists of four pulse shapers, synchronization unit, switchboard and power amplifier. The bridge consists of two parallel branches, the first one including the measurement object, multi-element two-terminal device and resistors. The second branch comprises the resistors. Said measurement object consists of two resistors, inductor and condenser. Zero-indicator has the differential input, synchronization input, the common bus of equilibrium indicator and pulse generator being grounded. The bridge incorporates four extra resistors. The first extra resistor is connected in the multi-element two-terminal device between the condenser output and inductor output. The second and third extra resistors are connected in series between the common output of the resistor and inductor in four-branch bridge circuit multi-element two-terminal device and common output of the single resistor of the first branch and the bridge output first output terminal. The fourth extra resistor is connected parallel with the circuit composed by the second and third resistors connected in series.
EFFECT: higher accuracy.
1 dwg
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