Friction-Sensing Reflector Array Patches (FRAP)

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX09CB24C
Agency Tracking Number: 075176
Amount: $599,938.00
Phase: Phase II
Program: SBIR
Awards Year: 2009
Solicitation Year: 2007
Solicitation Topic Code: A4.01
Solicitation Number: N/A
Small Business Information
Research Support Instruments, Inc.
4325-B Forbes Blvd., Lanham, MD, 20706-4854
DUNS: 076337877
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 John Kline
 Principal Investigator
 (978) 689-0003
 kline@researchsupport.com
Business Contact
 Christopher Rollins
Title: Vice President
Phone: (301) 306-0010
Email: rollins@researchsupport.com
Research Institution
N/A
Abstract
Research Support Instruments, Inc. (RSI) proposes to develop the Friction-Sensing Reflector Array Patches (FRAP), a technology that will measure the shear stress distribution on aerodynamic surfaces in ground test facilities with high resolution, sensitivity, and bandwidth. Unlike the oil-film interference method, FRAP patches will not be thinned as a function of time during a test. No knowledge of the streamlines of the flow will be needed in order to calculate the local stress distribution; this will avoid the tracers needed with the oil-film interference approach. Flexible patches of FRAP arrays, inexpensive due to simple, mass-production-compatible microfabrication techniques, will be interrogated using a light source and camera. FRAP will be independent of the flow species and applied as a very thin, flexible, adhesive material. The Phase II goals will be to improve the design and fabrication of the sensors, fully calibrate taking into account competing effects such as normal forces and temperature, demonstrate feasibility in a wide range of test environments from subsonic to heated and cold supersonic, and provide prototype units to NASA. The result will be a product that will address a critical NASA instrumentation need.

* information listed above is at the time of submission.

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