Digital Schlieren Photography

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9201-08-C-0259
Agency Tracking Number: F071-338-0675
Amount: $969,945.00
Phase: Phase II
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: AF071-338
Solicitation Number: 2007.1
Small Business Information
PRINCETON SCIENTIFIC INSTRUMENTS, INC.
7 Deer Park Drive,, Suite C, Monmouth Junction, NJ, 08852
DUNS: 050458132
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Lowrance
 Chief Scientist
 (732) 274-0774
 lowrance@prinsci.com
Business Contact
 John Lowrance
Title: President
Phone: (732) 274-0774
Email: lowrance@prinsci.com
Research Institution
N/A
Abstract
The Holloman High Speed Test Track (HHSTT) currently uses photographic film based image motion compensation techniques to create Focusing Schlieren photos of high speed rocket sleds. Since film processing and film manufacturing continue to be phased out, this capability needs to be replaced by digital cameras. Current state-of-the-art digital cameras are sufficient to replace HHSTT framing cameras, but the Schlieren cameras have several requirements that will require new developments. To obtain Schlieren photography with 0.05 inch spatial resolution a 3000x1 pixel array will be required. To obtain this resolution, on a Mach 10 (11,000 ft/sec) rocket sled, the exposure time must be < ~400 ns, resulting in a data acquisition rate of ~8 gigapixels per second. The program objective is to develop a Digital Schlieren Camera System to replace film-based techniques to optically record high resolution images of rocket sleds and their test articles at velocities up to 11,000 feet per second. The Phase II objective is to design, build, a prototype ultra-high speed digital focusing Schlieren camera system and test at the HHSTT.

* information listed above is at the time of submission.

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