DATA-ACQUISITION TECHNIQUES IN DIGITAL PHOTOELASTICITY - A REVIEW

Advancements in the last two decades for data acquisition in digital p hotoelasticity have been brought out in this paper. Photoelasticity is an engineering tool and as an end user, one would like to know which of the techniques to be selected for a particular application. With th is in view, the various techniques are reviewed and a brief summary of the steps involved in each of the techniques are also given. A need t o capture the images in colour is indicated for full automation of dat a acquisition. Future directions of research in digital photoelasticit y is also highlighted. (C) 1998 Elsevier Science Ltd. All rights reser ved.