High-Bandwidth High-Resolution Sensor for Hypersonic Flows

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: F49620-05-C-0026
Agency Tracking Number: F033-0069
Amount: $749,286.00
Phase: Phase II
Program: STTR
Awards Year: 2005
Solicitation Year: 2003
Solicitation Topic Code: AF03T013
Solicitation Number: N/A
Small Business Information
7 Deer Park Drive,, Suite C, Monmouth Junction, NJ, 08852
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Lowrance
 Chief Scientist
 (732) 274-0774
Business Contact
 John Lowrance
Title: President
Phone: (732) 274-0774
Email: lowrance@prinsci.com
Research Institution
 Walter Lempert
 1960 Kenny Road,
Columbus, OH, 43210
 (614) 292-2736
 Nonprofit college or university
There is the need for new diagnostic instrumentation capable of detailed hypersonic flow field characterization with spatial resolution of order 1 mm3 and temporal bandwidth of order MHz. In this proposal Princeton Scientific Instruments, in collaboration with the Ohio State University Gas Dynamics and Turbulence Laboratory, offers a novel solution based on PSI's recently developed Ultra High Frame Rate CCD Imager, in combination with a "burst mode" laser source developed by OSU. The proposed program focuses, primarily, on hypersonic flow diagnostics based on Planar Laser Induced Fluorescence (PLIF) imaging of the nitric oxide (NO) molecule, which, because it is a gas at temperatures as low ~ 75K, is readily seeded into even hypersonic flow facilities. We have demonstrated, in Phase I, the potential of a new NO-PLIF MHz frame rate velocity imaging diagnostic, termed Planar Doppler Fluorescence Velocimetry (PDFV). In Phase II we will continue to develop quantitative imaging diagnostics, culminating in a demonstration of the practical utility of the system by performing measurements in the AFRL - Air Vehicles Directorate Mach 5 Hypersonic Wind Tunnel. The proposed instrument system will also serve as a flexible diagnostic tool, capable of density and temperature imaging at frame rates as high as 1 MHz, and more conventional measurements, such as focusing Schlieren, Shack-Hartman wave front sensing, and holographic interferometry, at even higher frame rates.

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

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