Dimensional stability

The dimensional stability testers are automated testing instruments for optical evaluation of in-plane as well as out-of-plane deformations across a specimen surface. The DST concept enables detailed analysis of dynamic displacement across a specimen surface exposed to changes in moisture, temperature or tension. The 2D device has an accuracy of 1µ for 50 x 50mm surfaces. It consist of an integrated climate chamber. The 3D model needs separate climate chamber. The 3D approach can be used to describe the static shape of a cockled or curled surface as well as the dynamic deformation caused by moisture, temperature or tension.