Project Title:

Modular Digital Holographic Fringe Data Processing System

08.13-8500
Modular Digital Holographic Fringe Data Processing System
KMS Fusion Inc.
3621 S. State Rd, P.O. Box 1567
Ann Arbor
MI
48106
Downward
James C.
NAS1-12531
Amount:   
LaRC
NAS1-17945

Abstract:

   Holographic and interferometric techniques are used routinely for measuringwind tunnel flow field density distributions and structural deflections.  The goal
of this proposal is to develop a general purpose, modular, fringe analysis system
which will be able to use global and expert knowledge to control the processing of
fringe patterns into useful engineering data.

During Phase I of this proposal, the VAX/VMS software architecture for this system
was designed and critical components were prototyped to insure the implementation
method would meet the system design goals.  In addition, existing in-house fringe
locating algorithms were applied to NASA wind tunnel fringe data and were shown to
semi-automatically locate the fringes.

Phase II of this proposal will implement the Phase I architecture in software to
produce a prototype Fringe Analysis System (FAS).  Specifically, the FAS monitor,
core components of the Fringe Processing Command Language, and fringe locator modules
will be
 developed.  In addition, a prototype Expert Decision Module will be developed and
its use within the FAS environment evaluated.