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Proceedings Paper

A novel FBG sensing head geometry for strain-temperature discrimination
Author(s): Wenjun Zhou; Chun-Liu Zhao; Jie Huang; Weimin Shen; Xinyong Dong
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Paper Abstract

A novel FBG sensing head geometry with half corroded by hydrofluoric acid and half kept intact for strain-temperature discrimination has been proposed. Utilizing different diameters of two halves of the gratings, different strain sensitivities are achieved (≈50% difference) while temperature sensitivities remain the same. The maximum experimental errors obtained were within ±5.49 με and ±1.6 °C, respectively. The design has not only realized the simultaneous measurement of temperature and strain, but also obtained the temperature insensitive measurement.

Paper Details

Date Published: 25 November 2009
PDF: 6 pages
Proc. SPIE 7634, Optical Sensors and Biophotonics, 763411 (25 November 2009); doi: 10.1117/12.851312
Show Author Affiliations
Wenjun Zhou, China Jiliang Univ. (China)
Chun-Liu Zhao, China Jiliang Univ. (China)
Jie Huang, China Jiliang Univ. (China)
Weimin Shen, China Jiliang Univ. (China)
Xinyong Dong, China Jiliang Univ. (China)


Published in SPIE Proceedings Vol. 7634:
Optical Sensors and Biophotonics
Xingde Li; Qingming Luo; Vasilis Ntziachristos; Yoshiaki Yasuno, Editor(s)

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