Nonintrusive Augmentor Sensors

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-07-M-2787
Agency Tracking Number: F071-173-2795
Amount: $99,959.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: AF071-173
Solicitation Number: 2007.1
Small Business Information
2766 Indian Ripple Rd, Dayton, OH, 45440
DUNS: 884812025
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sukesh Roy
 Research Engineer
 (937) 255-3115
 sukesh@innssi.com
Business Contact
 Larry Goss
Title: President
Phone: (937) 429-4980
Email: gosslp@innssi.com
Research Institution
N/A
Abstract
The primary objective of this Phase-I research effort is to perform a feasibility study of the femtosecond (fs) laser-based frequency comb pair and CW Raman fiber comb pair for measuring temperature and H2O concentration at data rate greater than 10 kHz near 2.5 ìm. Tomographic reconstruction using proper orthogonal decomposition will be used in conjunction with multiple beams to obtain coarse temperature images. A key attribute of the proposed solution is the use of advanced hyperspectral sources (rather than diode lasers) to monitor H2O absorption features. Despite using absorption spectroscopy for determining the temperature and H2O concentration from hyperspectral frequency comb, this technology is fundamentally different from typical diode laser-based absorption sensors and has many advantages, specifically, allowing the acquisition of many spectral lines covering wide spectral range at very high speeds (>10 kHz, typically 30 kHz) and thereby providing better temperature accuracy and power spectral density (PSD) functions. This feasibility study will pave the way for designing the optimum source for the implementation in an augmentor test facility at WPAFB during the Phase-II research effort along with user-friendly software for tomographic reconstruction of the flow field.

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

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