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

机译:弹塑性波中粒子分布对速度的非均匀函数的测量

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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.!3
机译:摘要:激光差分干涉仪现已广泛用于研究快速动态现象。该方法的版本允许执行目标的平均速度和速度色散的测量。此信息为计算材料中的极限强度提供了重要数据,并允许确定其破坏的开始。在本文中,我们讨论了与大速度色散相关的问题,特别是与干涉图对比度降低有关的问题,这会导致确定平均速度时出现误差,并且不允许跟踪速度色散的整个演变过程。讨论了提高对比度的方法。结果由实验数据说明。!3

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