Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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INVESTIGATION OF THE LAYERED STRUCTURE OF THE METAL-INSULATOR-METAL EDDY CURRENT

Zyrianova A.I. 1, 2 Malikov V.N. 1, 2
1 Altai State University
2 Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences
Miniature eddy current probe for layered structures of the metal-insulator-metal transition is designed. The principle of operation of the sensor based on the developed converter is described. The algorithm of the software that controls the sensor is shown. This paper describes the results of a study of layered structures of the metal-insulator-metal. Relations between the thickness and the transducer response of the layered medium with a conductive substrate and without foundation are shown. It is shown that the counterfield amplitude decreases with increasing size of the structural elements of the dielectric , and with increasing of electromagnetic field frequency. The proposed modification of the eddy current method based on the use of subminiature sensors with increased local measurements, allows a reliable diagnosis structure of composite materials based on aluminum alloys. Developed measuring device has shown promise for the control of defects in these materials.