Innovative Concepts for Wireless Strain Sensing in Turbine Engines

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-05-C-0127
Agency Tracking Number: F054-004-0114
Amount: $99,991.00
Phase: Phase I
Program: STTR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: AF05-T004
Solicitation Number: N/A
Small Business Information
Long Island High Technology Incubator, 25 Health Sciences Dr, Stony Brook, NY, 11790
DUNS: 083265558
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Gambino
 (631) 444-6455
Business Contact
 Jeffrey Brogan
Title: President
Phone: (631) 444-6455
Research Institution
 Andrew Gouldstone
 Dept. of Mat. Sci. and Engr.
Stony Brook, NY, 11794
 (631) 632-4701
 Nonprofit college or university
MesoScribe Technologies proposes the development of a passive wireless strain system based on the Company's innovative Direct Write technology. Embedded circuit elements will be fabricated directly onto the surfaces of compressor blades and stator vanes. The sensors themselves will be very low weight and low profile. A strictly passive strain monitoring configuration is proposed where a resonant circuit on the rotating blade relays information to an appropriately equipped stationary vane, which will serve to interrogate the rotating blade through magnetic coupling. Considerations include compensation for dielectric constant and temperature coefficient of resistance using multiple orientations for strain sensors to accommodate and monitor strain in various locations. Additionally, this Phase I proposal will address maximizing signal-to-noise ratios to improve signal fidelity, optimizing sensitivity, and signal extraction from the stationary stator to provide adequate sampling rates, eg. 45-50 kHz. Also, the avoidance of silicon-based active devices, the lack of an external power source, and the small mass and low profile nature of the proposed strain sensors are all considerable advantages that could bring profound new sensing and monitoring capabilities to turbine engine systems. Together with project partner SUNY-Stony Brook and OEM partner, Pratt & Whitney a strong team has been constructed to meet the proposed development objectives.

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

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