V.S. Belyaev, V.B. Bychkov, Yu.A. Suddenok,  A.V. Tyablikov, V.N. Shorin

FSUE “VNIIFTRI”, Mendeleevo, Moscow region
belyaev@vniiftri.ru

Al’manac of Modern Metrology № 3 (19) 2019, pages 58–66

A comparative analysis of the possibilities of acoustic emission transducers (AET) of various types for the detection of acoustic emission signals in the simulation of corrosion in a thin plate made of aluminum alloy was carried out. The signals were excited in two ways: by dropping of the calibrated sand grains and etching with a solution of hydrochloric acid of weak concentration. The comparison was made by comparing the spectra of signal/noise ratios measured for seven types of AET. The best indicators were observed in the AETR 2500D sensor of domestic production.

Key words: acoustic emission, corrosion, acoustic emission transducer, Lamb waves, spectrum, signal/noise ratio.

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