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Self-Nulling Schlieren Imaging for Aircraft in Flight

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX15CD21P
Agency Tracking Number: 155279
Amount: $123,444.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: A2.01
Solicitation Number: N/A
Solicitation Year: 2015
Award Year: 2015
Award Start Date (Proposal Award Date): 2015-06-17
Award End Date (Contract End Date): 2015-12-17
Small Business Information
22941 Mill Creek Drive
Laguna Hills, CA 92653-1215
United States
DUNS: 079198837
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Benjamin Buckner
 Principal Investigator
 (714) 757-4187
Business Contact
 Benjamin Buckner
Title: Business Official
Phone: (714) 757-4187
Research Institution

Schlieren imaging is an especially useful tool for studying shock waves created by aircraft, because shock waves create strong refractive index gradients that can be visualized. Until recently, the large and delicate instrumentation required for schlieren photography mostly restricted the technique's use to ground test facilities. Previous work has shown that full-scale schlieren images of an aircraft in flight can be synthesized by analyzing high-speed video of the aircraft flying across the sun. The solar schlieren method is especially useful for air-to-air schlieren photography, because an airborne observation platform provides a unique perspective view of the second aircraft. We propose to advance this technique via a new self-nulling schlieren imaging method which has the potential to substantially increase the sensitivity of the technique. This technology could be also used to study large-scale aerodynamic problems where conventional laboratory schlieren imaging is impossible.

* Information listed above is at the time of submission. *

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