FIELD: measuring equipment.
SUBSTANCE: device has indicator, analog-code converter and input device. First input of input device is an input of meter, and output is connected to first input of analog-code converter. frequency-code converter and calculator are inserted. Output of converter frequency-code is connected to second output of calculator. First input of calculator is connected to output of analog-code converter, first input - to indicator, second input - to second input of analog-code converter, and third output - to second input of input device.
EFFECT: higher efficiency.
5 dwg
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