Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1990-11-16
1993-05-11
Wieder, Kenneth A.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
526 60, 324724, 324 711, G01N 2700, G01R 2702
Patent
active
052104990
ABSTRACT:
An apparatus and method for accurately monitoring the flow and cure rate of a resin material. The method is accomplished through the use and incorporation of efficient sensors as integral components of a composite resin structure material. The sensors used are electrically conductive threads arranged in a non-intersecting, grid-like configuration. They may be placed into or between composite resin materials. These sensors serve as leads which are connected to a computer through a multiplexer/rapid switching system and a scanner. The data obtained for the monitoring of the flow and cure of resin is stored on a computer system and is presented on the computers' graphic window.
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Hofer, "Fibre Optic Damage Detection in Composite Structures," Composites, 8(4), (Sep. 1987).
Elbaum Saul
Krosnick Freda L.
Regan Maura K.
The United States of America as represented by the Secretary of
Wieder Kenneth A.
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