REAL-TIME SUBSONIC FLOW VECTOR PROBE

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,418.00
Award Year:
1992
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
17859
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Spire Corp.
One Patriots Park, Bedford, MA, 01730
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Charles C. Blatchley
(617) 275-6000
Business Contact:
() -
Research Institution:
n/a
Abstract
PROPOSED RESEARCH WILL INCORPORATE FIVE LITHOGRAPHICALLY-GENERATED MIC ROSCOPIC HOT-FILM ANEMOMETERS INTO A SINGLE MICROSCOPIC HOT-DOME PROBE . THIS WILL ALLOW ACCURATE, LOCAL MEASUREMENT OF ALL THREE COMPONENTS FO AIRFLOW VELOCITY. FEASIBILITY OF A MACROSCOPIC THIN FILM RESISTOR ON SUCH A PROBE HAS BEEN DEMONSTRATED IN A PREVIOUS PHASE I PROJECT, WHICH ALSO DEVELOPED DESIGN CRITERIA, INCLUDING PROBE DIMENSIONS, POWE R DISSIPATION, AND MATERIALS PROPERTIES. THE OBJECTIVE OF THE CURRENT PROPOSAL IS TO DEMONSTRATE THAT PATTERNED FILAMENTARY RESISTORS CAN B E APPLIED TO A SMOOTH, CURVED PROBE BY LITHOGRAPHY TO SHRINK INDIVIDUA L SENSORS, SO THAT A COMPLETE FIVE-SENSOR PROBE WOULD BE SMALLER THAN 1MM IN DIAMETER. THE RESULT WILL BE A TINY, ROBUST PROBE ON AN AERODY NAMIC MOUNT THAT WILL ALLOW MEASUREMENTS TO BE OBTAINED UPSTREAM OF, O R WITHIN, THE INLET OF FULL-SCALE AIRCRAFT ENGINES. IN ADDITION, THE ACCURACY OF DIRECTIONAL INFORMATION, ITS SPEED OF RESPONSE, AND THE SI MPLIFIED ANALYSIS IT PERMITS WILL MAKE THIS APPROACH SUPERIOR TO OTHER MINIMALLY PERTURBING OR NON-PERTURBING METHODS.

* information listed above is at the time of submission.

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