Novel Materials for In-Situ Ablation Sensing

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,996.00
Award Year:
2012
Program:
STTR
Phase:
Phase I
Contract:
FA9550-12-C-0011
Award Id:
n/a
Agency Tracking Number:
F10B-T04-0217
Solicitation Year:
2010
Solicitation Topic Code:
AF10-BT04
Solicitation Number:
2010.B
Small Business Information
2760 Beverly Dr., #4, Aurora, IL, 60502-
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
Y
Duns:
927258277
Principal Investigator:
DonaldYuhas
President
(630) 236-5901
dyuhas@imsysinc.com
Business Contact:
Donald. Yuhas
President
(630) 236-5901
dyuhas@imsysinc.com
Research Institute:
University of Texas at Austin
Joseph H Koo
Dept of Mechical Engineering
1 University Station C2200
Austin, TX, 78712-0292
(512) 471-1131

Abstract
ABSTRACT: In order to achieve precise guidance, navigation and control in re-entry vehicles, aerodynamic shape must be accurately known throughout the flight trajectory. For this Phase I program an ultrasonic-based technique for real-time, non-intrusive (5 KHz) measurement of recession during ablation will be developed. The system combines the elements of ultrasonic thickness gauging technology with ultrasonic thermometry techniques. Novel, independent temperature measurement methods and analysis techniques will be formulated to separate variations attributed to thickness changes from those attributed to temperature changes. Recession, or wall thickness, changes can be measured using sensors located remotely from the ablating surface without modifying the thermal protective system in any way. The measurement concept will be verified through a series of ablation tests where real-time recession data will be quantitatively compared to post-ablation analysis. The instrumentation has low power consumption and can be made sufficiently compact for potential in-flight measurement. BENEFIT: Quantitative real-time recession sensing has application in TPS evaluation for both ground-based testing and in-flight systems. Military markets include NASA, Air Force, Navy and Army. In addition to hypersonics applications, there are also potential applications in combustion research, directed energy research and health monitoring.

* information listed above is at the time of submission.

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