Composite material process monitoring using optical fibre grating sensors
| dc.contributor.advisor | Tatam, Ralph P. | |
| dc.contributor.advisor | James, Stephen W. | |
| dc.contributor.author | Buggy, Stephen J. | |
| dc.date.accessioned | 2009-12-02T16:11:20Z | |
| dc.date.available | 2009-12-02T16:11:20Z | |
| dc.date.issued | 2008-06 | |
| dc.description.abstract | In this thesis a long period grating (LPG) based sensor is investigated as a possible alternative to current process monitoring sensors used in the manufacture of composites to monitor cure. An LPG is demonstrated as a means of monitoring the cure of a UVcured epoxy resin. The wavelength shift of the attenuation bands were measured 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. Alternative fibre grating methods; a chirped LPG sensor, an in-fire Mach-Zehnder interferometer and a tilted fibre Bragg grating sensor, are also presented to demonstrate the versatility of grating based sensors for flow, high sensitivity refractive index and multi-parameter sensing, respectively. Demonstrations of LPG sensors in industrial applications are also presented and highlight the technical issues of integrating such devices in composite components and composite manufacturing processes. | en_UK |
| dc.identifier.uri | http://hdl.handle.net/1826/4035 | |
| dc.language.iso | en | en_UK |
| dc.publisher | Cranfield University | en_UK |
| dc.rights | © Cranfield University, 2008. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder. | en_UK |
| dc.title | Composite material process monitoring using optical fibre grating sensors | en_UK |
| dc.type | Thesis or dissertation | en_UK |
| dc.type.qualificationlevel | Doctoral | en_UK |
| dc.type.qualificationname | PhD | en_UK |