کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10225813 | 1701218 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature-insensitive polarimetric torsion sensor based on a pair of angularly cascaded LPFGs
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel torsion sensor is proposed based on the polarization characteristics of a pair of angularly cascaded long period fiber gratings (ALPFG). A set of special designed fiber rings serve as the detached sensor head and the ALPFG provides the polarization filter. The input polarization is continually adjustable through rotating the dial of the fiber rings, which alters the output intensity from ALPFG, and the torsion sensitivity can reach â15.355â¯dB/rad. We study the periodicity of output intensity theoretically and experimentally and find the angular lag between the fluctuations of the two resonant dips. Through post-proceeding, we break the sensitivity-range limit and double the measuring range by taking advantage of the angular lag. This system design not only theoretically provides a more sensitive sensor head design, but also possesses more flexible, healthy and temperature-insensitive characteristics. Therefore, such sensor can be a good candidate for torsion sensing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 46, December 2018, Pages 11-14
Journal: Optical Fiber Technology - Volume 46, December 2018, Pages 11-14
نویسندگان
Jiang Yang, Weigang Zhang, Yanxin Zhang, Xuexue Kang, Yunshan Zhang, Lingxin Kong, Tieyi Yan, Lei Chen,