FIELD: examination and analysis of materials. SUBSTANCE: device has computer 1, unit of current-setting resistors 2, electrochemical transducer 3, amplitude detector 4 and digital voltmeter 5. Computer 1 includes AC voltage generator. It provides for programmed task and variation of AC voltage frequency, checking of transient process end on electrodes of electrochemical transducer, and processing of measurement results. EFFECT: higher results of analysis. 1 dwg
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