Time - Average Dynamic Speckle Interferometry

被引：4
|
作者：
Vladimirov, A. P. [1 ]
机构：
[1] Ural Fed Univ, Ekaterinburg 620002, Russia
来源：
11TH INTERNATIONAL CONFERENCE ON VIBRATION MEASUREMENTS BY LASER AND NONCONTACT TECHNIQUES - AIVELA 2014: ADVANCES AND APPLICATIONS | 2014年 / 1600卷
关键词：
Speckle; speckle dynamics; microscopic process; multi; -; scale; time averaging; FLOW;
D O I：
10.1063/1.4879588
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
For the study of microscopic processes occurring at structural level in solids and thin biological objects, a method of dynamic speckle interferometry successfully applied. However, the method has disadvantages. The purpose of the report is to acquaint colleagues with the method of averaging in time in dynamic speckle - interferometry of microscopic processes, allowing eliminating shortcomings. The main idea of the method is the choice the averaging time, which exceeds the characteristic time correlation (relaxation) the most rapid process. The method theory for a thin phase and the reflecting object is given. The results of the experiment on the high-cycle fatigue of steel and experiment to estimate the biological activity of a monolayer of cells, cultivated on a transparent substrate is given. It is shown that the method allows real-time visualize the accumulation of fatigue damages and reliably estimate the activity of cells with viruses and without viruses.
引用
收藏
页码：237 / 242
页数：6
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