BRIDGE TRANSFORMER Russian patent published in 2004 - IPC

FIELD: electric engineering.

SUBSTANCE: device has bridge sensors power source, connected to one output of power main for bridge sensors, and operational amplifier, output of which is connected to another output of bridge sensors power main, and inverse input - to one output of bridge sensors output line, while between resistor of another output of bridge sensors output line and non-inverse input of operational amplifier a voltage separator is switched in, which is made in form of two serially connected resistors. As output of voltage separator is loaded for a very high input resistance of operational amplifier, the very voltage separator may always by made with use of high-ohm resistors, to allow practically non-loaded bridge sensors output line and allow to evade effect from resistor of output line of bridge sensors as a result of transformation.

EFFECT: higher sensitivity of device, higher value of output signal of device.

2 cl, 2 dwg