Dynamic Speckle - Interferometry of Micro-Displacements / Vladimirov A. P. // . - 2012. - V. 1457, l. . - P. 459-468.

ISSN/EISSN:

0094-243X / нет данных

Type:

Proceedings 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.

Author keywords:

Micro-displacement; speckle; speckle dynamics; multi-beam interferometry; fatigue; ultrasound VELOCITY; SETUP; WAVES

DOI:

10.1063/1.4730589

Web of Science ID:

ISI:000306954600053

Соавторы в МНС:

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Другие поля

Поле	Значение
Editor	Tomasini, EP
Booktitle	10TH INTERNATIONAL CONFERENCE ON VIBRATION MEASUREMENTS BY LASER AND NONCONTACT TECHNIQUES - AIVELA 2012
Series	AIP Conference Proceedings
Note	10th International Conference on Vibration Measurements by Laser and Noncontact Techniques - AIVELA, Fac Engn, Ancona, ITALY, JUN 27-29, 2012
Organization	Amer Inst Phys (AIP); European Acoust Assoc (EAA); European Opt Soc (EOS); Opt Soc Amer (OSA); Soc Expt Mech (SEM); AIVELA
Publisher	AMER INST PHYSICS
Address	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Language	English
ISBN	978-0-7354-1059-6
Keywords-Plus	VELOCITY; SETUP; WAVES
Research-Areas	Optics; Physics
Web-of-Science-Categories	Optics; Physics, Applied
ResearcherID-Numbers	Vladimirov, Alexander/K-2967-2012
ORCID-Numbers	Vladimirov, Alexander/0000-0001-6343-9772
Number-of-Cited-References	8
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	2
Doc-Delivery-Number	BBI34