Pankow Mark, Justusson Brian, Waas Anthony M
Composite Structures Laboratory, Department of Aerospace Engineering, University of Michigan, 1320 Beal Avenue, Ann Arbor, Michigan 48109-2140, USA.
Appl Opt. 2010 Jun 10;49(17):3418-27. doi: 10.1364/AO.49.003418.
We are concerned with the development of a three-dimensional (3D) full-field high-speed digital image correlation (DIC) measurement system using a single camera, specifically aimed at measuring large out-of-plane displacements. A system has been devised to record images at ultrahigh speeds using a single camera and a series of mirrors. These mirrors effectively converted a single camera into two virtual cameras that view a specimen surface from different angles and capture two images simultaneously. This pair of images enables one to perform DIC measurements to obtain 3D displacement fields at high framing rates. Bench testing along with results obtained using a shock wave blast test facility are used to show the validity of the method.
我们关注的是使用单个相机开发一种三维（3D）全场高速数字图像相关（DIC）测量系统，特别旨在测量大的面外位移。已经设计了一种系统，使用单个相机和一系列镜子以超高速记录图像。这些镜子有效地将单个相机转换为两个虚拟相机，它们从不同角度观察样本表面并同时捕获两张图像。这对图像使人们能够进行DIC测量，以高帧率获得三维位移场。通过台架试验以及使用冲击波爆炸试验设施获得的结果来证明该方法的有效性。
