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FTIR Monitoring Of Curing Of CompositesInfrared-sensing optical fiber system developed to monitor principal infrared absorption bands resulting from vibrations of atoms and molecules as chemical bonds form when resin cured. System monitors resin chemistry more directly. Used to obtain Fourier transform infrared (FTIR) spectrum from graphite fiber/polyimide matrix resin prepreg. Embedded fiber optic FTIR sensor used to indicate state of cure of thermosetting composite material. Developed primarily to improve quality of advanced composites, many additional potential applications exist because principal of operation applicable to all organic materials and most inorganic gases. Includes monitoring integrities of composite materials in service, remote sensing of hazardous materials, and examination of processes in industrial reactors and furnaces.
Document ID
19900000678
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Druy, Mark A.
(Foster-Miller Associates, Inc.)
Stevenson, William A.
(IRIS Fiber Optics, Inc.)
Young, Philip R.
(NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 14, 2013
Publication Date
December 1, 1990
Publication Information
Publication: NASA Tech Briefs
Volume: 14
Issue: 12
ISSN: 0145-319X
Subject Category
Fabrication Technology
Report/Patent Number
LAR-14040
Accession Number
90B10678
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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