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

FIELD: measurement equipment.

SUBSTANCE: bridge meter of parameters of multi-element RLC dipoles comprises a generator of voltage pulses, the outlet of which is connected to the inlet of four arms of the bridge circuit, the first branch of which comprises serially connected single resistor in the first arm of the ratio and the multi-element dipole with balancing elements in the first arm of comparison, and the second branch - from a single resistor in the second arm of the ratio and a single resistor in the second arm of comparison, a differential amplifier, inlets of which are connected with the outlet of the bridge circuit, and the outlet is connected to a n-cascade differentiator, comprising n serially connected differentiating RC links; a zero indicator; a device of control, the synchronisation outlet of which is connected with the inputs of the pulse generator and zero indicator synchronisation inlets. At the same time the multi-element dipole circuit with balancing elements is a potentially frequency-independent dipole introduced in the arm of comparison of the first branch, and this dipole comprises two serially connected dipole circuits, one of which comprises parallel connected first resistor and serially connected first capacitor and second resistor, in parallel to which the second capacitor is connected, the other dipole circuit comprises parallel connected first inductance coil and serial circuit made of a resistor and the second inductance coil; the free pole of the second dipole circuit is connected with the first terminal for connection of the dipole RLC circuit of the measurement object, the second terminal for connection of the dipole RLC circuit is grounded.

EFFECT: expansion of functional capabilities of a meter.

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