An All Electronic, Adaptive, Focusing Schlieren System for Flight Research

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX08CB16P
Agency Tracking Number: 074247
Amount: $99,949.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: A2.08
Solicitation Number: N/A
Small Business Information
MetroLaser, Inc.
2572 White Road, Irvine, CA, 92614-6236
DUNS: 188465819
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: Y
Principal Investigator
 Drew L'Esperance
 Principal Investigator
 (949) 553-0688
 dlesperance@metrolaserinc.com
Business Contact
 Christina Arnold
Title: Director of Administration
Phone: (949) 553-0688
Email: carnold@metrolaserinc.com
Research Institution
N/A
Abstract
This is a proposal to develop an electronic, focusing schlieren system for flight research based on electronic cameras and spatial light modulators as dynamic programmable masks. Schlieren methods are widely used to visualize turbulence and shock phenomena. Focusing schlieren systems are ideal for applications requiring a large field of view, and are the preferred methods for outdoor schlieren systems. One schlieren technique for large field studies is the use of focusing schlieren with background grids. Recently, schlieren systems that use the sun as a background source have been developed for studying shock waves for aircraft in flight. The application of both schlieren techniques is restricted by the capabilities of fixed schlieren cut-off masks. Liquid crystal spatial light modulators afford greater flexibility, as the correct cut-off mask can be programmed and updated electronically. Since the spatial light modulators can be updated at video rates or faster, there is also the possibility of using the SLMs to correct for changes in the background. In addition, we will incorporate state of the art electronic cameras.

* information listed above is at the time of submission.

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