Compositions – Nonreactive analytical – testing – or indicating compositions
Patent
1992-03-11
1993-08-31
Stoll, Robert L.
Compositions
Nonreactive analytical, testing, or indicating compositions
385 12, 385 13, 385141, G01L 124
Patent
active
052406431
ABSTRACT:
This invention comprises the use of diacetylene-containing polymers, e.g., olyamides containing reactive diacetylene groups that change their absorption in the visible spectrum with the application of strain as a strain sensing device in various organic matrix composites such as an epoxy laminated composite. The built in sensors in accordance with this invention will not affect the mechanical performance of the composite and will indicate strain without the need for extensive electronic equipment to measure the light pulse amplitude or phase before and after strain.
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patent: 5094527 (1992-05-01), Martin
Buckley Leonard J.
Neumeister Gary C.
Bechtel James B.
Fee Valerie
Stoll Robert L.
The United States of America as represented by the Secretary of
Tura James V.
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