@inproceedings{901c5b28931743d6b98264e729a9fd87,
title = "Alarm system of optical fibre using the thermal-optical sensibility of the PNIPAAm polymer",
abstract = "An alarm system as extrinsic sensor on optical fibers for detecting and controlling inflammable liquids based on thermosensitive proprieties of the PN1PAAm hydrogel is presented. The changes on the optical proprieties of the PN1PAAm with the temperature (being its LCST 32°C), induce abrupt changes on the light intensity and they act as an alarm signal, which is transmitted by optical fibers and after they will be processed by an optoelectronic circuit, responsible to active an alarm. An appropriate system consists of the hydrogel connected between its ends to two segments of plastic optical fibers (source and receiver) and they turn on the alarm when a photo detector does not receive light when the hydrogel becomes when it reaches threshold of temperature. The characterization of the hydrogel and the experimental results are presented for a prototype.",
keywords = "Alarm sensing, Plastic optical fiber, Smart hydrogels",
author = "Rueda, {J. C.} and D. Chana and K. Contreras and R. Coello and M. Lomer",
year = "2007",
doi = "10.1117/12.738672",
language = "English",
isbn = "0819467618",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "EWOFS 2007 Proceedings",
note = "EWOFS 2007: Third European Workshop on Optical Fibre Sensors ; Conference date: 04-07-2007 Through 06-07-2007",
}