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BOUNDARY LAYER TRANSITION DETECTION SYSTEM

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
5102
Program Year/Program:
1987 / SBIR
Agency Tracking Number:
5102
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Innovative Dynamics, Inc.
2560 North Triphammer Road Ithaca, NY 14850-
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1987
Title: BOUNDARY LAYER TRANSITION DETECTION SYSTEM
Agency: NASA
Contract: N/A
Award Amount: $62,801.00
 

Abstract:

THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP A PROTOTYPE BOUNDARY LAYER TRANSITION DETECTION SYSTEM (BLTDS) THAT INCORPORATES PIEZO-ELECTRIC MATERIAL TO SENSE LAMINAR, TRANSITIONAL, AND TURBULENT BOUNDARY LAYER PRODUCED SIGNALS AND TO DETECT THE POINT OF TRANSITION. A NOVEL CONCEPT CONCEIVED BY THE PROPOSER THAT UTILIZES SOLID-STATE PIEZOELECTRIC SENSOR TECHNOLOGY INDICATES THAT IT IS POSSIBLE TO SENSE BOTH SURFACE DRAG SHEAR FORCE AND ACOUSTICNOISE GENERATED BY THE AIRFLOW. THE KEY ELEMENTS OF THIS SYSTEM UTILIZE POLYVINYLIDENE FLOURIDE TRANSDUCER FILM MATERIAL (PVDF) FOR SENSING AND A MICROCOMPUTER FOR DIGITAL SIGNAL PROCESSING. DUE TO ITS EXCELLENT PIEZOELECTRIC PROPERTIES AND BROADBAND RESPONSE, THE PVDF CAN SENSE THE BOUNDARY LAYER SURFACE VIBRATORY MOTION RESPONDING TO FREQUENCIES FROM A FEW HZ TO 100 KHZ AND HIGHER. BY INCORPORATING A MICROCOMPUTER INTO THIS SYSTEM, A NUMBER OF DESIGN ADVANTAGES IMMEDIATELY BECOME AVAILABLE. IT WILL BE POSSIBLE TO CONSTRUCT A NONINTRUSIVE PROTOTYPE BLTDS THAT DETERMINES LAMINAR, TURBULENT, AND TRANSITIONAL CONDITIONS ON BOTH WIND TUNNEL MODELS AS WELL AS ACTUAL AIRCRAFT FLIGHT CONTROL SURFACES.

Principal Investigator:


0

Business Contact:

Philip R. Dahl
Senior Sci
Small Business Information at Submission:

Innovative Dynamics
Venture County Airport 1607 West Fifth Street Oxnard, CA 93030

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No