In situ composite cure monitoring using infrared transmitting optical fibersThe development of infrared-transmitting optical fibers as sensors for monitoring the cure of advanced composite materials is reported. Fourier transform infrared spectra are presented which were remotely sensed during the cure of a high performance polyimide resin and a graphite/polyimide matrix prepreg using an 0.1 mm O.D. x 3 m chalcogenide optical fiber. A discussion of the fiber and sensor element, absorption mechanism and potential applications is presented.
Document ID
19890042606
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Young, Philip R. (NASA Langley Research Center Hampton, VA, United States)
Druy, Mark A. (Foster-Miller, Inc. Waltham, MA, United States)
Stevenson, W. A. (IRIS Fiber Optics, Inc. Acton, MA, United States)
Compton, David A. C. (Biorad Laboratories Cambridge, MA, United States)