Multifunctional special-shaped electric bridge

The present invention relates to a multifunctional special-shaped electric bridge, belonging to the field of measurement technology, autocontrol technology and electronic equipment. A monopolar electric bridge and a bipolar electric bridge have four structural types of pair type, composite type, chain type and tree type respectively. The monopolar electric bridge comprises a resistor, a voltage-controlled current source, a multiplier or a follower and the like. The bipolar electric bridge comprises a resistor, an operational amplifier, a multiplier or a follower and the like. When the electric bridge is balanced, each bridge arm or bridge limb has the same resistance ratio. The voltage, the current and the power of a pressure flow bridge arm, a balanced bridge limb and a source-controlled bridge limb are extremely simple and convenient to be measured; a proportional controller leads the incitation of the bridge arms and the bridge limbs to be controlled independently; each bridge arm and each bridge limb can