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Proceedings Paper

Quasi-distributed temperature sensor system based on various-packaged FBG
Author(s): Yinmin Zhang; Qianzhe Liu; Wei He; Lianqing Zhu
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Paper Abstract

Different package of fiber Bragg grating (FBG) temperature sensors were introduced. The temperature sensitive factors of the sensors were derived analytically and verified by experiments. A quasi distributed temperature sensor system consisted of different-packaged FBG, wideband light source, and FBG interrogator was set up successfully. The experiment results of the different FBG temperature sensors were compared by analyzing the variety properties of center wavelength in identical conditions. From the experimental results, it is shown that the central wavelength of FBG temperature sensor with different package shifts diversely; while good linearity and preferable repeatability are present among the various FBG sensors, and there is almost no hysteresis effect. The temperature sensing ability of the packaged FBG sensor is improved and the temperature sensitivity coefficient is about 3 or more times as much as that of the bare FBG. The temperature resolution of the packaged FBG sensor can reach up to 0.03°C. It is indicated that all the packaged FBG sensors are suitable to measure temperature according to specific application environment.

Paper Details

Date Published: 10 October 2013
PDF: 8 pages
Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 89161C (10 October 2013); doi: 10.1117/12.2035900
Show Author Affiliations
Yinmin Zhang, Beijing Information Science & Technology Univ. (China)
Qianzhe Liu, Beijing Information Science & Technology Univ. (China)
Wei He, Hefei Univ. of Technology (China)
Lianqing Zhu, Beijing Information Science & Technology Univ. (China)

Published in SPIE Proceedings Vol. 8916:
Sixth International Symposium on Precision Mechanical Measurements
Shenghua Ye; Yetai Fei, Editor(s)

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