Dynamic speckle-interferometry as a tool of mechanics and nondestructive testing / Vladimirov AP,Popov DO,Kapustin DS,Belskikh ES,Eremin PS // . - 2004. - V. 5503, l. . - P. 533-543.

ISSN/EISSN:

0277-786X / нет данных

Type:

Proceedings Paper

Abstract:

A problem on the interaction between coherent radiation and a dynamic medium under deformation is studied on the basis of a model of a three-dimensional diffuser. An expression has been obtained for the function of mutual coherence of the intensity of scattered radiation at two spatial-temporal points of free space and the region of the image of a thin object. Some mechanic-optic effects associated with changes, displacements and interferences of speckle fields resulting from the theory are considered. Results of experiments conducted to verify the theory are given, and new coherent-optic methods of measurement and testing are substantiated. Particularly, consideration is given to speckle displacement along the Z-axis in the deformation of a body in the X- and Y- directions, a method for studying rotary motions of surface areas, a method for revealing pre-fracture regions, a method for determining strains and nondestructive testing based on a new approach to the registration of interference fringe patterns.

Author keywords:

3D-diffuser; deformation; tilts; fracture; speckle; interferometry; nondestructive testing DEFORMATIONS; FIELDS

DOI:

10.1117/12.579583

Web of Science ID:

ISI:000222825200062

Соавторы в МНС:

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Другие поля

Поле	Значение
Editor	Tomasini, EP
Booktitle	SIXTH INTERNATIONAL CONFERENCE ON VIBRATION MEASUREMENTS BY LASER TECHNIQUES: ADVANCES AND APPLICATIONS
Series	PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
Note	6th International Conference on Vibration Measurements by Laser Techniques, Ancona, ITALY, JUN 22-25, 2004
Organization	Italian Assoc Laser Velocimetry \& Non- Invas Diagnost; Univ Politecn Marche, Dipartiment Meccan
Publisher	SPIE-INT SOC OPTICAL ENGINEERING
Address	1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
Language	English
ISBN	0-8194-5436-2
Keywords-Plus	DEFORMATIONS; FIELDS
Research-Areas	Instruments \& Instrumentation; Optics
Web-of-Science-Categories	Instruments \& Instrumentation; Optics
Number-of-Cited-References	19
Usage-Count-Since-2013	1
Doc-Delivery-Number	BAM45