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

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX09CA26C
Agency Tracking Number: 074247
Amount: $599,925.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2007
Solicitation Topic Code: A2.08
Solicitation Number: N/A
Small Business Information
MetroLaser, Inc.
8 Chrysler, Irvine, CA, 92618-2008
DUNS: 188465819
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Drew L'Esperance
 Principal Investigator
 (949) 551-2595
 dlesperance@metrolaserinc.com
Business Contact
 Christina Arnold
Title: Director of Administration
Phone: (949) 553-0688
Email: carnold@metrolaserinc.com
Research Institution
N/A
Abstract
Visualization of turbulence and shock phenomena by schlieren imaging has led to important discoveries in aerodynamics, and there has been much interest in applying schlieren methods for aircraft in flight. The goal of this project is to develop the next generation of Schlieren for Aircraft in Flight (SAF) systems. SAF is a technique for obtaining schlieren images of aircraft as they fly past the edge of the sun. In its original form, images were recorded with a time delay and integration (TDI) camera using slit masks that conformed to the edge of the sun. Problems arise if the cutoff mask is not precisely aligned with edge of the sun, or if the TDI camera is not aligned and synchronized with the aircraft flight path. These problems can be solved using the synthetic TDI method, where the aircraft transit of the sun is recorded on high-speed video, and then the TDI process is carried out computationally using programmable masks. Synthetic, TDI-based SAF systems are less sensitive to movement of the observation platform, and can be used with non-cooperative targets whose flight paths and velocities are not known in advance.

* information listed above is at the time of submission.

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