Investigation of the technique of ultrasonic thickness control using the EMA method

Experimental studies of the electromagnetic-acoustic (EMA) method for controlling the thickness of sheets, metalware, equipment, and pipelines were performed. New methods for the measurement of ultrasonic thickness that provide thickness control without cleaning the contact surface of a tested objec...

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Bibliographic Details
Published in:Russian journal of nondestructive testing 2010-06, Vol.46 (6), p.440-457
Main Authors: Razygraev, N. P., Razygraev, A. N., Ponomarev, S. N., Bezlyud’ko, G. Ya, Mikhovski, M., Mirchev, I.
Format: Article
Language:English
Subjects:
Acoustic Methods
Characterization and Evaluation of Materials
Chemistry and Materials Science
Contact
Gaging
Gauging
Greases
Materials Science
Nondestructive testing
Sheet metal
Structural Materials
Transducers
Ultrasonic testing
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Summary:Experimental studies of the electromagnetic-acoustic (EMA) method for controlling the thickness of sheets, metalware, equipment, and pipelines were performed. New methods for the measurement of ultrasonic thickness that provide thickness control without cleaning the contact surface of a tested object and without using contact greases, as is required when using conventional contact ultrasonic transducers, are shown. On the basis of these studies and the experience of ultrasonic thickness gauging (USTG) by the contact and EMA methods, a USTG technology that uses the EMA method has been developed.
ISSN:1061-8309
1608-3385
DOI:10.1134/S1061830910060082