Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1990-10-16
1992-08-25
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250343, 374 53, G01N 2135
Patent
active
051421518
ABSTRACT:
A method for measuring the degree of cure of a resin in a composite material such as a prepreg. The method employs an infrared spectrometer device determining frequency absorbance information of selective frequencies which are representative of the degree of cure of the resin comprised within the prepreg. The method is adaptable for use in on-line production processes for the production of such composite materials.
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Doty Mark J.
Knox Trudie M.
Parfomak Andrew N.
Richgels Scott H.
Varnell William D.
Allied-Signal Inc.
Friedenson Jay P.
Glick Edward J.
Hannaher Constantine
Parfomak Andrew N.
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