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Russian Journal of Nondestructive Testing
Published in: Russian Journal of Nondestructive Testing 10/2020

01-10-2020 | ACOUSTIC METHODS

Selecting Optimum Parameters of Ultrasonic Noncontact Shadow Method for Testing Products Made of Polymer Composite Materials

Authors: V. K. Kachanov, I. V. Sokolov, M. A. Karavaev, R. V. Kontsov

Published in: Russian Journal of Nondestructive Testing | Issue 10/2020

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Abstract

It has been shown that in order to increase the sensitivity of ultrasonic noncontact shadow testing of products made of polymer composite materials (PCMs), it is necessary, along with the well-known techniques (increasing the amplitude of the probing signal, using radio technical signal processing methods, employing highly sensitive electroacoustic transducers), to optimize the parameters of noncontact testing. Criteria have been established for choosing air gaps between the emitting transducer and the test object and between the test object and the receiving transducer, as well as criteria for choosing the duration of probing signals. Methods for increasing the reliability of testing the border regions of small-thickness PCM products are proposed. The results of automatic noncontact scanning of PCM products in the shadow mode using an adaptive measuring complex that allows the testing parameters to be adapted to each new tested product are presented.
previous article Deep Learning Techniques for Flaw Characterization in Weld Pieces from Ultrasonic Signals
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Metadata
Title
Selecting Optimum Parameters of Ultrasonic Noncontact Shadow Method for Testing Products Made of Polymer Composite Materials
Authors
V. K. Kachanov
I. V. Sokolov
M. A. Karavaev
R. V. Kontsov
Publication date
01-10-2020
Publisher
Pleiades Publishing
Published in
Russian Journal of Nondestructive Testing / Issue 10/2020
Print ISSN: 1061-8309
Electronic ISSN: 1608-3385
DOI
https://doi.org/10.1134/S1061830920100046

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