Possibility of Evaluating a Depth of Defects as a Hole in a Composite Dielectric Sample by the Parameters of Electric Response to Pulse Mechanical Excitation

Possibility of Evaluating a Depth of Defects as a Hole in a Composite Dielectric Sample by the Parameters of Electric Response to Pulse Mechanical Excitation

Bibliographic Details
Parent link:Key Engineering Materials: Scientific Journal
Vol. 781 : Radiation-Thermal Effects and Processes in Inorganic Materials.— 2018.— [P. 155-158]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт неразрушающего контроля (ИНК) Проблемная научно-исследовательская лаборатория электроники, диэлектриков и полупроводников (ПНИЛ ЭДиП)
Other Authors: Khorsov P. N. Petr Nikolaevich, Surzhikov A. P. Anatoly Petrovich, Laas R. A. Roman Aleksandrovich, Surzhikov V. P. Vladimir Petrovich
Summary:Title screen
The applicability of the method mechanoelectrical transformations (MET) to determine the depth of the macrodefects location in the sample on parameters of the electromagnetic response is evaluated. As the response parameter it was used the phase characteristic of the signal analytical representation.On the one-dimensional mathematical model it was shown the possibility to detect phase response changes when reflected from defect acoustic wave is mixed with the signal spurious component generated by a distributed MET sources. Experimental verification of mathematical model on a sample of concrete was conducted. It has been shown that the sensitivity of the method MET to evaluation of the macrodefect locate depth depends on the wavelength of the excitation pulse and the area of the macrodefect border closest to the emitter-receiver system.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2018
Subjects:
электронный ресурс
труды учёных ТПУ
acoustic wave
defect
mathematical model
mechanoelectrical transfomations
акустические волны
дефекты
математические модели
механоэлектрические преобразования
Online Access:https://doi.org/10.4028/www.scientific.net/KEM.781.155
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658798

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