A displacement sensor based on balloon-like optical fiber structure

被引：21
作者：
Cai, Lu [2 ,3 ]
Ai, Xin [2 ]
Zhao, Yong [1 ,2 ,3 ]
机构：
[1] Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110819, Peoples R China
[3] Hebei Key Lab Micronano Precis Opt Sensing & Meas, Qinhuangdao 066004, Hebei, Peoples R China
来源：
SENSORS AND ACTUATORS A-PHYSICAL | 2022年 / 338卷
基金：
中国国家自然科学基金;
关键词：
Optical fiber sensor; Displacement; Balloon-like structure; Modal interferometer; TACTILE;
D O I：
10.1016/j.sna.2022.113469
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A modal interferometric fiber-optic displacement sensor based on the balloon-like structure is investigated experimentally. When the bending radius of the balloon-like structure is reduced to 3.0 mm, the displacement sensitivity could reach up to 71.49 nm/mm. Moreover, the evolution process of the transmission spectra in a wide dynamic displacement range exceeding 22 mm is analyzed, which can provide guiding significance for sensor designing. The proposed displacement sensor is extremely low-cost, robust, and compact.
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页数：7
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