BRIDGE MEASURING DEVICE FOR MEASURING PARAMETERS OF TWO-TERMINAL DEVICES Russian patent published in 2012 - IPC G01R17/10 

FIELD: physics.

SUBSTANCE: bridge measuring device for measuring parameters of two-terminal devices has series-connected feed composite electrical signal generator, a bridge circuit and a null indicator. The bridge circuit has a two-terminal device with balancing elements, an additional third circuit which is part of the bridge circuit and is connected in parallel to a circuit consisting of a first resistor, an inductance coil and the second resistor of that two-terminal device, wherein functional earthed elements of the two-terminal device with balancing elements are adjustable, and elements of the two-terminal device of the measuring object act as the three unknown parameters - first and second resistors and first capacitance.

EFFECT: reduced measurement error owing to exclusion of the error component from spurious capacitances relative the earth terminal of the adjustable balancing elements, reduced instability of these spurious capacitances.

1 dwg