A speckle-interferometric setup for contactless measurements of the velocity of rayleigh ultrasonic waves / Vladimirov A. P.,Gorkunov E. S.,Eremin P. S.,Zadvorkin S. M.,Shadrin M. V.,Solov'ev K. E. // INSTRUMENTS AND EXPERIMENTAL TECHNIQUES. - 2010. - V. 53, l. 1. - P. 118-121.

ISSN/EISSN:

0020-4412 / нет данных

Type:

Article

Abstract:

The velocity of a Rayleigh wave was determined by measuring its propagation time between two Iaser-illuminated small areas of a rough surface. It is sh own that, if a Rayleigh wave passes over these areas, a photodiode twice detects signals proportional to the surface displacement in the speckle overlap region. In contrast to the previous variant, signal-distorting reflections are eliminated in the instrument. A sample holder excluding adjustment of the interferometer upon a change in the object size has been manufactured. A new technique for determining the time interval between two signals is used. The instrument operates at a frequency of 5 MHz, and the distance between the areas is adjusted in the range 5-100 mm. The rms deviation of the velocity from the average value for ten measurements is 8 x 10-4.

Author keywords:

нет данных

DOI:

10.1134/S0020441210010197

Web of Science ID:

ISI:000275415100019

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Research-Areas	Engineering; Instruments \& Instrumentation
Web-of-Science-Categories	Engineering, Multidisciplinary; Instruments \& Instrumentation
ResearcherID-Numbers	Горкунов, Эдуард/D-5091-2016 Zadvorkin, Sergey/E-6635-2016
ORCID-Numbers	Горкунов, Эдуард/0000-0003-1820-2746 Zadvorkin, Sergey/0000-0002-7918-8207
Funding-Acknowledgement	Russian Foundation for Basic Research {[}08-08-90030-Bel\_a]
Funding-Text	This study was supported in part by the Russian Foundation for Basic Research, project no. 08-08-90030-Bel\_a.
Number-of-Cited-References	7
Usage-Count-Since-2013	2
Journal-ISO	Instrum. Exp. Tech.
Doc-Delivery-Number	567AR