Measurement of the nonuniform function of particle distribution on velocities in elastic-plastic waves

Alexander Divakov; Yuri I. Mescheryakov; Nadya O. Reingand

doi:10.1117/12.357781

17 August 1999 Measurement of the nonuniform function of particle distribution on velocities in elastic-plastic waves

Alexander Divakov, Yuri I. Mescheryakov, Nadya O. Reingand

Proceedings Volume 3745, Interferometry '99: Applications; (1999) https://doi.org/10.1117/12.357781
Event: International Conference on Optical Metrology, 1999, Pultusk Castle, Poland

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.

Citation Download Citation

Alexander Divakov, Yuri I. Mescheryakov, and Nadya O. Reingand "Measurement of the nonuniform function of particle distribution on velocities in elastic-plastic waves", Proc. SPIE 3745, Interferometry '99: Applications, (17 August 1999); https://doi.org/10.1117/12.357781

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