Design and development of an LED based fiber optic evanescent wave sensor for simultaneous detection of chromium and nitrite traces in water

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Design and development of an LED based fiber optic evanescent wave sensor for simultaneous detection of chromium and nitrite traces in water

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dc.contributor.author Suresh Kumar, P
dc.contributor.author Thomas Lee, S
dc.contributor.author Vallabhan, C P G
dc.contributor.author Nampoori, V P N
dc.contributor.author Radhakrishnan, P
dc.date.accessioned 2011-12-02T10:13:33Z
dc.date.available 2011-12-02T10:13:33Z
dc.date.issued 2002
dc.identifier.issn 0030-4018
dc.identifier.other Optics Communications 214 (2002) 25–30
dc.identifier.uri http://dyuthi.cusat.ac.in/purl/2594
dc.description.abstract The design and development of a cost-effective, simple, sensitive and portable LED based fiber optic evanescent wave sensor for simultaneously detecting trace amounts of chromium and nitrite in water are presented. In order to obtain the desired performance, the middle portions of two multimode plastic clad silica fibers are unclad and are used as the sensing elements in the two arms of the sensor. Each of the sensor arms is sourced by separate super bright green LEDs, which are modulated in a time-sharing manner and a single photo detector is employed for detecting these light signals. The performance and characteristics of this system clearly establish the usefulness of the technique for detecting very low concentrations of the dissolved contaminants. en_US
dc.description.sponsorship Cochin University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Fiber optic sensor en_US
dc.subject Electro optic devices en_US
dc.subject Fiber optic chromium sensor en_US
dc.subject Nitrite sensor en_US
dc.subject Evanescent wave en_US
dc.title Design and development of an LED based fiber optic evanescent wave sensor for simultaneous detection of chromium and nitrite traces in water en_US
dc.type Working Paper en_US
dc.contributor.faculty Technology en_US
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0030401802021466 en_US


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