THE DEVELOPMENT OF A PRESSURE TRANSDUCER FOR USAGE IN HIGH PRESSURE AND VIBRATION ENVIRONMENTS

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$228,700.00
Award Year:
1984
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
201
Agency Tracking Number:
201
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
21414 68th Avenue South, Kent, WA, 98032
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
H.T. Liu
(206) 872-8500
Research Institution:
n/a
Abstract
THE OBJECTIVE OF THIS PROPOSAL IS TO DEVELOP A HIGH-ACCURACY, LOW RANGE PRESSURE TRANSDUCER WHICH IS SUITABLE FOR MEASUREMENT IN ENVIRONMENTS WHERE HIGH VIBRATION, HIGH TEMPEATURE AND VARYING LINE PRESSURE CREATE PROBLEMS FOR PRESENTLY AVAILABLE TRANSDUCERS. THE PRIMARY SENSOR IS AN ELASTIC METAL MEMBRANCE WHICH FORMS ONE PLATE OF A CAPCITOR. AN ELECTRONIC CIRCUIT CONVERTS THE MEMBANE DEFLECTIONS INTO VOLTAGE VARIATIONS WHICH ARE SAMPLED BY A MICROPROCESSOR. DUE TO THE SMALL OSCILLATING MAS OF THE MEMBRANE, THE TRANSDUCER HAS A HIGH NATURAL FREQUENCY AND IS LARGELY INSENSITIVE TO EXTERNALLY INDUCED VIBRATIONS. THE CAPACITIVE TRANSDUCER CONCEPT OFFERS AN UNUSUAL AMOUNT OF DESIGN FLEXIBILITY AND CAN WITHSTAND LARGE OVERLOADS.

* information listed above is at the time of submission.

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