Buggy, Stephen J.Chehura, EdmonJames, Stephen W.Tatam, Ralph P.2011-05-242011-05-242007-06-01S J Buggy, E Chehura, S W James and R P Tatam, Optical fibre grating refractometers for resin cure monitoring. Journal of Optics A: Pure and Applied Optics, Volume 9, Number 6, June 2007 pg S601464-4258http://dx.doi.org/doi:10.1088/1464-4258/9/6/S09http://dspace.lib.cranfield.ac.uk/handle/1826/1830The use of fibre grating refractometers as a means of monitoring the cure of a UVcured epoxy resin is presented. The wavelength shift of the attenuation bands of a long period grating and the spectral response of a tilted fibre Bragg grating sensor were measured simultaneously during the cure of the resin and compared with measurements made using a fibre optic Fresnel based refractometer. The results showed a good correlation (6 x 10 -3 rius) and illustrate the potential of the techniques for non-invasive composite material cure monitoring.en-UKoptical fibre sensorrefractive indexcure monitoringfibre gratingsArticle