CONDUCTIVITY METER FOR GRAPHITE EPOXY

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$49,171.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
6162
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Msi Electronics Inc
34-32 57th St, Woodside, NY, 11377
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
HERBERT BLENNER
(718) 672-6500
Business Contact:
() -
Research Institution:
n/a
Abstract
THE ELECTRICAL CONDUCTIVITY OF GRAPHITE EPOXY COMPOSITE MATERIAL IS A FUNCTION OF THE RELATIVE ORIENTATION OF THE APPLIED FIELD AND THE FIBER DIRECTION FOR UNIDIRECTIONAL MATERIAL. PRIOR ATTEMPTS AT NONCONTACT, NONDESTRUCTIVE ELECTROMAGNETIC METHODS OF CONDUCTIVITY MEASUREMENT HAVE NOT BEEN FULLY SUCCESSFUL DUE TO LOW LEVELS OF SIGNAL OR IMPROPER ORIENTATION OF THE ELECTROMAGNETIC FIELDS. TWO PROPRIETARY APPROACHES TO OVERCOMING THE DEFICIENCIES HAVE BEEN FORMULATED; ONE AT MICROWAVE FREQUENCIES USING REFLECTIVITY MEASUREMENT AND THE OTHER AT LOWER FREQUENCIES EXPLOITING THE IMPEDANCE CHANGES AND MICROCOMPUTER SUPPORT OF A SPECIALLY DESIGNED, CALIBRATED EDDY CURRENT PROBE. IT IS PROPOSED THAT BOTH THESE APPROACHES BE EXPERIMENTALLY STUDIED IN DETAIL SO THAT THEIR FEASIBILITY CAN BE DETERMINED, THEIR RELATIVE COST EFFECTIVENESS DETERMINED AND THE DATA BASE AND APPROACH TO PROTOTYPE FIELD USABLE SYSTEM DESIGN BE GENERATED.

* information listed above is at the time of submission.

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