Dunkers, J.
, Flynn, K.
, Huang, M.
and McDonough, K.
(1997),
Fourier Transform Near-Infrared Monitoring of Reacting Resins Using an Evanescent Wave High-Index Fiber-Optic Sensor, Applied Spectroscopy, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=854030
(Accessed April 26, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Fourier Transform Near-Infrared Monitoring of Reacting Resins Using an Evanescent Wave High-Index Fiber-Optic Sensor
Published
Author(s)
, , Mitchell Huang,
Abstract
In this work, a high-index silica-b ased ® ber-optic mini-bundle sensor was constructed and implemented with a Fourier transform near-infrared spectrometer in the spectral region from 10 000 to 4500 cm2. The refractive index of the multimode step index ® ber was 1.618. This arrangement allows the propagation of waveguiding modes when the sensor is immersed in most resin systems. The reactions of a polyisocyanurate resin system and an epoxy resinsystem were monitored and peak assignments were made and discussed with respect to their potential for use in real-time analysis to be applied to cure control. Last, cure monitoring with this sensor was successfully demonstrated in a glass-reinforced resin transfer molded epoxy part.Citation
Applied Spectroscopy
Pub Type
Journals
Download Paper
Keywords
Near infrared, Fiber optics, Composite, Cure, Epoxy, Polyisocyanurate
Citation
Created November 4, 1997, Updated February 19, 2017