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:

00204412

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 × 10-4. © 2010 Pleiades Publishing, Ltd.

Author keywords:

Index keywords:

Average values; Contactless measurement; Object size; Overlap region; Propagation time; Rayleigh; Rms deviations; Rough surfaces; Sample holders; Small area; Surface displacement; Time interval; Rayle

DOI:

10.1134/S0020441210010197

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-77950850182&doi=10.1134%2fS0020441210010197&partnerID=40&md5=18c350dc8334f3e767ec7ee48ade3f3d

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-77950850182&doi=10.1134%2fS0020441210010197&partnerID=40&md5=18c350dc8334f3e767ec7ee48ade3f3d
Affiliations	Institute of Engineering Science, Ural Division, Russian Academy of Sciences, ul. Komsomol'skaya 34, Yekaterinburg 620049, Russian Federation
References	(1989) Methods of Acoustic Testing of Metals, p. 11. , Metody akusticheskogo kontrolya metallov. N.P. Aleshin (eds). Mashinostroenie Moscow; Zhitlukhina, Yu.V., Perov, D.V., Rinkevich, A.B., (2008) Acoust. Phys., 54 (1), p. 94. , 10.1134/S1063771008010132 2008APhy.54.94Z; Bondarenko, A.N., Bazylev, P.V., Lugovoi, V.A., (1990) Defektoskopiya, 10, p. 91. , 1990Defek.10.91B; Dean, J.L., Trillo, C., Doval, A.F., Fernandez, J.L., (2008) Proc. SPIE-Int. Soc. Opt. Eng., 7098, pp. 7098OL1; Vladimirov, A.P., Gorkunov, E.S., Eremin, P.S., Zadvorkin, S.M., (2006) Defektoskopiya, 9, p. 31; Vladimirov, A.P., Mikushin, V.I., Lisin, A.L., (1999) Pis'Ma Zh. Tekh. Fiz., 25 (24), p. 88; Zakharenkov, V.F., Rakovskii, Yu.N., Shibaev, S.N., (2001) Opt. Zh., 68 (3), p. 61
Correspondence Address	Vladimirov, A. P.; Institute of Engineering Science, Ural Division, Russian Academy of Sciences, ul. Komsomol'skaya 34, Yekaterinburg 620049, Russian Federation
Language of Original Document	English
Abbreviated Source Title	Instrum. Exp. Tech.
Source	Scopus