RESISTANCE STRAIN GAUGE SIGNAL TRANSDUCERS Russian patent published in 2008 - IPC G01R17/10 

FIELD: electricity.

SUBSTANCE: invention is intended for use as the transducer of signals of four-wire bridge and single resistance strain gauges of multidot measuring systems for the analysis of the strained-stressed state of the flying device .structure. The said transducer contains a current source and an operational amplifier, their outputs connected to the transducer current terminals. Besides, the transducer incorporates a voltage source and a switch a common output of which is connected to uninverse input of the operational amplifier, while the other two outputs are connected to the power source and the transducer common bus. The inverse input of the amplifier is connected to the potential terminal of the transducer. Here the current and potential terminals of the transducer are oriented relative to each other so that, at connection of the transducer to a single resistance strain gauge, the inverse input of the amplifier and the output of the current source are connected with one-sign to potential and current terminals, respectively.

EFFECT: extended range of functions of the transducer.

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