PHOSFOS: Difference between revisions

Revision as of 08:50, 4 June 2010

Revision as of 08:57, 4 June 2010

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'''PhosFOS''' is a [[research]] and [[technology development]] project co-funded by the [[European Commission]].

[[File:Phosfos logo.jpg|thumbnail|right|400px]]

==Project Description==

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==Key results so far==

[[File:Fabric with embedded POF sensors.jpg|thumbnail|right|400px|Figure 12: Digital image correlation (DIC) image of the strain field in a fabric fitted with polymer optical fiber (POF) and silica gratings under a load of 20N, using dimethyl cyclosiloxane (DMC) and Araldite adhesive. FBG: Fiber Bragg grating. Si: Silicon. N: Newtons. MPa: Megapascals]]

Latest results can be found on the PhosFOS EU webpage [http://www.phosfos.eu/index.php/eng/Phosfos/Conferences-and-Presentations]. One of the early results from the project was the successful demonstration of a repeatable method of joining the polymer fiber to standard silica fibre. This was a major development and allowed for the first time POF Bragg gratings to be used in real applications outside of the optics lab. One of the first uses for these sensors was in monitoring the strain of tapestries <ref>http://eprints.soton.ac.uk/68650/01/137_Lennard.pdf</ref>, <ref>http://spie.org/x39927.xml?ArticleID=x39927</ref>. In this case conventional electrical strain sensors and silica fiber sensors were shown to be strengthening the tapestries in areas where they were fixed. Because the polymer devices are much more flexible they do not distort the material as much and therefore give a much most accurate measurement of the strain in flexible materials.