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Proceedings Paper

Measurement of the nonuniform function of particle distribution on velocities in elastic-plastic waves
Author(s): Alexander Divakov; Yuri I. Mescheryakov; Nadya O. Reingand
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Paper Abstract

Laser differential interferometer is now widely used for the study of fast dynamic phenomena. The version of this method allows to carry out the measurement both average velocity of the target and the velocity dispersion. This information provides the important data for the calculation of threshold strength in the materials and allows to determine the beginning of their destruction. In the paper we discuss the problems associated with the large velocity dispersion, in particular with the interference pattern contrast reduction that leads to the error in determination of average velocity and does not allow to follow the whole evolution of the velocity dispersion. The way to improve the contrast are discussed. The results are illustrated by experimental data.

Paper Details

Date Published: 17 August 1999
PDF: 7 pages
Proc. SPIE 3745, Interferometry '99: Applications, (17 August 1999); doi: 10.1117/12.357781
Show Author Affiliations
Alexander Divakov, Institute of Mechanical Engineering Problems (Russia)
Yuri I. Mescheryakov, Institute of Mechanical Engineering Problems (Russia)
Nadya O. Reingand, Institute of Mechanical Engineering Problems (United States)


Published in SPIE Proceedings Vol. 3745:
Interferometry '99: Applications
Werner P. O. Jueptner; Krzysztof Patorski, Editor(s)

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