Abstract
The paper presents the results of the study of electropotential signals when measuring surface cracks on alternating current in magnetic and non-magnetic objects. Electropotential signals in the frequency range in the form of hodographs of the initial and fractured stress complexes, as well as in the form of calibration characteristics. Problems of measurement features in non-ferromagnetic objects. The analysis of the influence of specific electrical conductivity and current frequency when measuring the depth of cracks in non-ferromagnetic objects
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