FIELD: measurement technology.
SUBSTANCE: device has current source, analog-to-digital converter, control unit, switches, reference resistors, multiplexer, strain-gauge resistor connected with input of multiplexer, signal oscillator, counter, register, and processor. Reference resistors are connected to input of multiplexer via doubled switched. Output of current source is connected with output of multiplexer; input of analog-to-digital converter is also connected with output of multiplexer. Inputs of control unit are connected with output of analog-to-digital converter and with first and second outputs of signal oscillator. Output of counter is connected to data input of register. Outputs of processors are connected with input of doubled switch and with resolution reading-out input of register. Output of register is connected with input of processor through bus.
EFFECT: improved precision of measurement.
3 dwg
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