High Bandwidth Plasma Sensor Suite for Flow Parameter and Vibration Measurement

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$749,587.00
Award Year:
2010
Program:
SBIR
Phase:
Phase II
Contract:
N68335-10-C-0114
Agency Tracking Number:
N081-037-0380
Solicitation Year:
2008
Solicitation Topic Code:
N08-037
Solicitation Number:
2008.1
Small Business Information
Spectral Energies, LLC
5100 Springfield Street, Suite 301, Dayton, OH, 45431
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
Y
Duns:
782766831
Principal Investigator:
Sivaram Gogineni
President
(937) 256-7733
contact@spectralenergies.com
Business Contact:
Sivaram Gogineni
President
(937) 256-7733
contact@spectralenergies.com
Research Institution:
n/a
Abstract
Spectral Energies, LLC in collaboration with University of Notre Dame is developing a “suite" of ac-driven, weakly-ionized plasma devices configured as flush-mounted high-bandwidth sensors to measure quantities that are important to gas-turbine engine performance. The sensors are designed for surface pressure, shear stress, gas temperature and gas species. The design of these devices is based on the “plasma anemometer" developed by Matlis et al. for measurement of mean and dynamic mass-flux in hypersonic flows. The sensors use metallic electrodes driven by ac-voltage waveforms to locally ionize the gas. The properties of the ionized gas uniquely correlate with the local conditions and can be sensed through changes in the applied ac waveform. The design of the electrodes and choice of discharge regime varies depending on gas property to be sensed. We will continue to refine and test the design while documenting static and dynamic sensitivity. A test is planned with General Electric Aviation to place a plasma sensor on a full-scale gas-turbine as part of the LEAP56 core engine program. The objective is to develop a compressor stall prediction capability. The sensor “suite" represents a new generation of sensing devices that can operate in high enthalpy and vibration-loaded conditions.

* information listed above is at the time of submission.

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