Acoustic-electric non-destructive method to detect defects in dielectric materials / A. A. Bespalko (Bespal'ko), A. P. Surzhikov, D. D. Dann [et al.]

Уровень набора: (RuTPU)RU\TPU\network\3526, Journal of Physics: Conference SeriesАльтернативный автор-лицо: Bespalko (Bespal'ko), A. A., physicist, Leading researcher of Tomsk Polytechnic University, Candidate of physical and mathematical sciences, 1948-, Anatoly Alekseevich;Surzhikov, A. P., physicist, Professor of Tomsk Polytechnic University, doctor of physical and mathematical sciences (DSc), 1951-, Anatoly Petrovich;Dann, D. D., specialist in the field of electrical engineering, Engineer-researcher of Tomsk Polytechnic University, 1987-, Denis Dmitrievich;Pomishin, E. K., physicist, technician of Tomsk Polytechnic University, 1993-, Evgeny Karlovich;Petrov, M. V., specialist in the field of non-destructive testing, Associate Scientist of Tomsk Polytechnic University, 1992-, Maksim VyacheslavovichКоллективный автор (вторичный): Национальный исследовательский Томский политехнический университет, Институт неразрушающего контроля, Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников;Национальный исследовательский Томский политехнический университет, Инженерная школа неразрушающего контроля и безопасности, Отделение контроля и диагностикиЯзык: английский.Резюме или реферат: The paper reveals the effect of imperfection of solid-state dielectric samples on the parameters of the electromagnetic response under exposure of the test object to deterministic acoustic impact. The patterns of changes in the parameters of electromagnetic signals with variations and an increased electric field vector with respect to the defect–sample contact are provided. It is shown that the amplitude-frequency parameters of the emitted electromagnetic signals are directly related to the acoustic impedance and conductivity of the contacting medium and defect. The amplitudes of the electromagnetic responses are found to correspond to the distribution of mechanical stresses arising in an imperfect system during acoustic pulse propagation in time and space determined through mathematical modeling. The paper presents data on changes in the electromagnetic signal parameters for model defects of an increased size in samples of similar type..Примечания о наличии в документе библиографии/указателя: [References: 22 tit.].Тематика: электронный ресурс | труды учёных ТПУ | электрический отклик | параметры | технические характеристики Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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[References: 22 tit.]

The paper reveals the effect of imperfection of solid-state dielectric samples on the parameters of the electromagnetic response under exposure of the test object to deterministic acoustic impact. The patterns of changes in the parameters of electromagnetic signals with variations and an increased electric field vector with respect to the defect–sample contact are provided. It is shown that the amplitude-frequency parameters of the emitted electromagnetic signals are directly related to the acoustic impedance and conductivity of the contacting medium and defect. The amplitudes of the electromagnetic responses are found to correspond to the distribution of mechanical stresses arising in an imperfect system during acoustic pulse propagation in time and space determined through mathematical modeling. The paper presents data on changes in the electromagnetic signal parameters for model defects of an increased size in samples of similar type.

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