Dynamic speckle - Interferometry of micro-displacements / Vladimirov A.P. // AIP Conference Proceedings. - 2012. - V. 1457, l. . - P. 459-468.

ISSN:

0094243X

Type:

Conference Paper

Abstract:

The problem of the dynamics of speckles in the image plane of the object, caused by random movements of scattering centers is solved. We consider three cases: 1) during the observation the points move at random, but constant speeds, and 2) the relative displacement of any pair of points is a continuous random process, and 3) the motion of the centers is the sum of a deterministic movement and random displacement. For the cases 1) and 2) the characteristics of temporal and spectral autocorrelation function of the radiation intensity can be used for determining of individually and the average relative displacement of the centers, their dispersion and the relaxation time. For the case 3) is showed that under certain conditions, the optical signal contains a periodic component, the number of periods is proportional to the derivations of the deterministic displacements. The results of experiments conducted to test and application of theory are given. © 2012 American Institute of Physics.

Author keywords:

Fatigue; Micro-displacement; Multi-beam interferometry; Speckle; Speckle dynamics; Ultrasound

Index keywords:

нет данных

DOI:

10.1063/1.4730589

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874489492&doi=10.1063%2f1.4730589&partnerID=40&md5=12bd34dd8c6468e1b899db1db6d54494

Соавторы в МНС:

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Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874489492&doi=10.1063%2f1.4730589&partnerID=40&md5=12bd34dd8c6468e1b899db1db6d54494
Affiliations	Institute of Engineering Science, Ural Branch of Russian Academy of Sciences, Komsomolskaya str., 34, Yekaterinburg, Russian Federation; Ural Federal University, Mira str., 12, Yekaterinburg, 620002, Russian Federation
Author Keywords	Fatigue; Micro-displacement; Multi-beam interferometry; Speckle; Speckle dynamics; Ultrasound
References	Alexandrov, E.B., Bonch-Bruevich, A.M., (1967) Technical Physics Journal, 37, pp. 360-369; Leendertz, J.A., (1970) J. Phys. E: Sci. Instrum., 3, pp. 214-218; Vladimirov, A.P., Popov, D., Kapustin, D., Belkikh, E., Eremin, P., (2004) Proc. SPIE, 5503, pp. 533-543; Vladimirov, A.P., Popov, D.O., Rzhannikov, A.A., Malygin, A.S., (2008) Proc. SPIE, 7098, pp. 70981D1-70981D8; Yamaguchi, I., (1991) Optica Acta, 28, pp. 1359-1376; Vladimirov, A.P., Druzhinin, A.V., Malygin, A.S., Mikitas, K.N., (2012) Proc. of SPIE, 8337, pp. 83370C1-83370C15; Vladimirov, A.P., Gorkunov, E.S., Eremin, P.S., (2010) Instruments and Experimental Techniques, 53, pp. 118-121; Vladimirov, A.P., Gorkunov, E.S., Goruleva, L.S., (2011) Russian Journal of Nondestructive Testing, 47, pp. 153-157
Correspondence Address	Vladimirov, A.P.; Institute of Engineering Science, Ural Branch of Russian Academy of Sciences, Komsomolskaya str., 34, Yekaterinburg, Russian Federation
Sponsors	American Institute of Physics (AIP);European Acoustics Association (EAA);European Optical Society (EOS);The Optical Society (OSA);Society for Experimental Mechanics (SEM)
Conference name	10th International Conference on Vibration Measurements by Laser and Noncontact Techniques, AIVELA 2012
Conference date	27 June 2012 through 29 June 2012
Conference location	Ancona
ISBN	9780735410596
Language of Original Document	English
Abbreviated Source Title	AIP Conf. Proc.
Source	Scopus