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Title: Concentration sensor based on a tilted fiber Bragg grating for anions monitoring
Author: Melo, L. B.
Rodrigues, J. M. M.
Farinha, A. S. F.
Marques, C. A.
Bilro, L.
Alberto, N.
Tomé, J. P. C.
Nogueira, R. N.
Keywords: Sensors
Chemical sensors
Tilted fiber Bragg gratings
Bio-chemical compounds
Refractive index
Issue Date: Aug-2014
Publisher: Elsevier
Abstract: The ubiquity and importance of anions in many crucial roles accounts for the current high interest in the design and preparation of effective sensors for these species. Therefore, a tilted fiber Bragg grating sensor was fabricated to investigate individual detection of different anion concentrations in ethyl acetate, namely acetate, fluoride and chloride. The influence of the refractive index on the transmission spectrum of a tilted fiber Bragg grating was determined by developing a new demodulation method. This is based on the calculation of the standard deviation between the cladding modes of the transmission spectrum and its smoothing function. The standard deviation method was used to monitor concentrations of different anions. (...)
Peer review: yes
DOI: 10.1016/j.yofte.2014.05.002
ISSN: 1068-5200
Appears in Collections:DQ - Artigos
IT - Artigos
QOPNA - Artigos

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