DEVICE FOR REMOTE IMPEDANCE MEASUREMENT Russian patent published in 2022 - IPC G01R27/04 

FIELD: measuring technology.

SUBSTANCE: invention relates to the field of electrical measurements and can be used for remote measurements of impedance. The device for remote impedance measurement contains an auto-balancing bridge consisting of a measuring voltage generator, a voltmeter connected to this generator and controlling its voltage, a current-to-voltage converter from an amplifier with resistive parallel negative feedback and a vector voltmeter measuring the output voltage module of the amplifier and its phase shift relative to the voltage measured by the said voltmeter, two measuring terminals and matching resistors with the same resistances, connecting line of identical coaxial cables, connected by the input to the measuring terminals, a measuring cell at the output of the connecting line for connecting the measured object, containing two electrically shielded clips from each other, the screen of which is connected to the cable screens at the output of the line.

EFFECT: providing remote measurement of impedance using connecting lines of almost any length from cables of ordinary quality, simplifying the measurement process.

1 cl, 1 dwg