时间序列动态散斑相关跟踪测量原理及其应用

The Tracking Method of Digital Speckle Correlation Using the Sequential Dynamical Speckle Patterns and its Applications

在对散斑场的特性进行研究与分析的基础上,提出了时间序列动态散斑相关跟踪测量法,它弥补了一般散斑相关法不适合大变形测量的缺点,扩大了散斑相关法的应用范围.运用这种方法不仅可以测量大动态范围的面内变形,而且可以测量分析面内动态变形过程和变形速度.

Based on analyzing the speckle field s characteristic, the tracking method of digital speckle correlation using the sequential dynamical speckle patterns was presented. This method can bridge the gap that the ordinary speckle correlation does not suit the large deformation measurement, and increase the applied fields of digital speckle. Through this method, the large-scale dynamical displacement can be measured and the process of deformation in surface can be analyzed.