Miniature Temperature-Independent Curvature Sensor Based on a Phase-Shifted Long-Period Fiber Grating Using Deep Tapering

被引：7

作者：

Zhu, Chengliang ^{[1
,2
,3
]}

Huang, Shuai ^{[1
]}

Tang, Chengfeng ^{[1
]}

Yang, Gang ^{[1
,2
,3
]}

Zhao, Yong ^{[1
,2
,3
]}

Li, Hongpu ^{[4
]}

机构：

[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110004, Peoples R China

[2] Hebei Key Lab Micronano Precis Opt Sensing & Meas, Qinhuangdao 066004, Hebei, Peoples R China

[3] State Key Lab Synthet Automat Proc Ind, Shenyang 110004, Peoples R China

[4] Shizuoka Univ, Grad Sch Engn, Naka Ku, Hamamatsu, Shizuoka 4328561, Japan

来源：

IEEE SENSORS JOURNAL | 2023年 / 23卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Sensors; Optical fiber sensors; Temperature sensors; Gratings; Stress; Temperature measurement; Sensitivity; Miniature curvature sensor; optical fiber sensor; phase-shifted long-period fiber grating (FG); temperature independence;

D O I：

10.1109/JSEN.2023.3279127

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 miniature temperature-independent curvature sensor was proposed and prepared by using a phase-shifted long-period fiber grating (LPG) fabricated from deeply tapered conventional single-mode fibers (SMFs). As a typical example, a sensor made from a phase-shifted deeply tapered long-period grating (PS-DTLPG) with a length of 3.4 mm and a maximum curvature sensitivity of 12.05 nm/m(-1) was successfully demonstrated. The proposed curvature sensor is temperature-independent and has features of high sensitivity, high reliability, miniature size, and low cost, which could have potential applications in structural health monitoring, especially for the medical industry and shape reconstruction.

引用

页码：14174 / 14181

页数：8