Programmable Data-Retrieval System for In-Plane Displacements from Speckle Photographs.

摘要

This report describes the development of a programmable data-retrieval system for in-plane displacements from speckle photographs. The system can produce a whole field printout of in-plane displacements. The field size and interrogation density are user selectable. The overall system accuracy is + or - 2%, and the interrogation rate is 0.1 points per second.