BRIDGE METER OF PARAMETERS OF DIPOLES Russian patent published in 2013 - IPC G01R17/00 

FIELD: electricity.

SUBSTANCE: bridge meter of dipole parameters comprises serially connected generator, bridge circuit and zero indicator. The first output of the generator is connected to the inlet of the four-arm bridge circuit, which forms a common outlet of two parallel connected branches of the bridge, the first branch is formed by serially connected two terminals for connection of dipoles of measurement objects and a single resistor of the first arm of the bridge circuit ratio, the first terminal is connected to the first outlet of the pulse generator. The object of measurement comprises serially connected the first resistor and an inductance coil, in parallel to which the capacitor is switched, and the second resistor is connected in series with the three-element circuit. The free output of the single resistor is grounded, and the common output from it and the second terminal for connection of objects of measurement forms the first output of the bridge outlet. The second branch of the bridge is formed by serially connected single capacitor of the second arm of the bridge ratio and dipole of balance elements of the bridge circuit, comprising serially connected first capacitor, first resistor and inductance coil, in parallel to which there is the second resistor connected, the free output of the single capacitor is connected to the first outlet of the generator, the free common output of the inductance coil and the second resistor is grounded, the common output of the single capacitor and the dipole of bridge balancing elements forms the second output of the bridge outlet. Besides, the device comprises an additional capacitor and an additional resistor. The additional capacitor is connected between the second output of the bridge outlet and "earth", and the additional resistor - between the common output of the first capacitor and the first resistor of the second branch of the bridge and "earth".

EFFECT: reduced error of measurement.

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