BRIDGE METER OF BIPOLES PARAMETERS Russian patent published in 2013 - IPC G01R17/10 

FIELD: electricity.

SUBSTANCE: bridge meter of bipoles parameters, comprising a pulse generator, including four pulse shapers, a power amplifier and a synchronisation unit, a switchboard, and also a bridge circuit, which forms the first branch, developed with serially connected the first resistor, an inductance coil and the second resistor, the third resistor is connected in parallel to the inductance coil, and the second one with a branch of the bridge circuit formed by serially connected a single resistor and two terminals for connection of bipoles of a measurement object, a zero indicator. At the same time there are six additional resistors introduced, and an additional inductance coil, in the first branch of the bridge circuit in parallel to the available inductance coil there are the first and second additional resistors connected in series, in parallel to the first of them there are the following serially joined components connected: the third additional resistor and an additional inductance coil, in parallel to the latter there is the fourth additional resistor connected, also in parallel to the additional inductance coil there are the following serially joined components connected: the fifth and sixth additional resistors, the common outlet of the fifth and sixth additional resistors forms the other one of two leads of the bridge circuit outlet, this lead is connected with the remaining free lead of the first input (a differential input) of the zero indicator.

EFFECT: provision of the possibility to separately balance a bridge circuit only by controlled resistors.

1 dwg