Digital Image Correlation System
All strain measurements in the lab are performed using digital image correlation (DIC). DIC is a noncontact optical strain measurement technique. Samples are speckled and a series of images is captured at a fixed frequency using high-resolution cameras synchronized with the load frame. The VIC 3D and ARAMIS software packages are used to analyze the images and compute strain measurements.
- Macroscopic and microscopic lenses for large and small sample areas, respectively
- Image resolution options between VGA (640 x 480) and QXGA (2048 x 1536)
- Measured strain accurate to better than 0.1 microstrain