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Proceedings Paper

Applications of tilted fiber Bragg grating in liquid parameters measurement
Author(s): Biqiang Jiang; Jianlin Zhao; Abdul Rauf; Chuan Qin; Wei Jiang
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Paper Abstract

We present and experimentally analyze the applications of tilted fiber Bragg grating (TFBG) for the measurement of liquid parameters, including the concentration (or refractive index), liquid-level and dynamic concentration change. On the basis of analyzing the measurement principle of refractive index using TFBG, its spectral variations with the glycerol concentration and liquid-level are obtained. Meanwhile, a fast demodulation technique monitoring the small variation of TFBG transmission power in a strong background is employed to measure dynamic change in the liquid concentration. The results show that the method is easy to achieve fast, cost-effective measurement of the change process of liquid concentration.

Paper Details

Date Published: 13 May 2013
PDF: 8 pages
Proc. SPIE 8788, Optical Measurement Systems for Industrial Inspection VIII, 878812 (13 May 2013); doi: 10.1117/12.2019874
Show Author Affiliations
Biqiang Jiang, Northwestern Polytechnical Univ. (China)
Jianlin Zhao, Northwestern Polytechnical Univ. (China)
Abdul Rauf, Northwestern Polytechnical Univ. (China)
Chuan Qin, Northwestern Polytechnical Univ. (China)
Wei Jiang, Northwestern Polytechnical Univ. (China)

Published in SPIE Proceedings Vol. 8788:
Optical Measurement Systems for Industrial Inspection VIII
Peter H. Lehmann; Wolfgang Osten; Armando Albertazzi, Editor(s)

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