Bragg grating temperature sensors: modeling the effect of adhesion of polymeric coatings

Jinu Paul (School of Mechanical and Production Engineering, Nanyang Technological University, Singapore)
Zhao Liping (Singapore Institute of Manufacturing Technology, Singapore)
Bryan Ngoi (School of Mechanical and Production Engineering, Nanyang Technological University, Singapore)
Fang Zhong Ping (Singapore Institute of Manufacturing Technology, Singapore)

Sensor Review

ISSN: 0260-2288

Publication date: 1 December 2004

Abstract

Polymeric coatings and packaging are often used to enhance the temperature sensitivity of fiber Bragg grating temperature sensors. The high thermal expansion coefficient of the polymer enhances the thermal sensitivity by improving the wavelength shift due to thermal expansion. The adhesion of the polymeric coatings to the silica based optical fiber plays an important role in the wavelength response characteristics of fiber Bragg gratings with respect to temperature. Experiments are done to qualitatively analyze the influence of adhesion. Three‐dimensional finite element simulations have been carried out. Spring elements are used to interconnect the nodes of the meshed models of optical fiber and coating. The effect of adhesion is studied as a function of spring stiffness.

Keywords

Citation

Paul, J., Liping, Z., Ngoi, B. and Zhong Ping, F. (2004), "Bragg grating temperature sensors: modeling the effect of adhesion of polymeric coatings", Sensor Review, Vol. 24 No. 4, pp. 364-369. https://doi.org/10.1108/02602280410558395

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Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited

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