A Strain Sensor Based on Core-Distortion Long-Period Fiber Grating

被引：0
|
作者：
Li, Yuanyuan [1 ]
Li, Min [1 ]
Tian, Tian [1 ]
Dai, Zizhao [1 ]
Ma, Yiwei [1 ]
Li, Song [1 ]
Lu, Chunlian [1 ]
Geng, Tao [1 ]
机构：
[1] Harbin Engn Univ, Key Lab Infiber Integrated Opt, Minist Educ China, Harbin 150001, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2023年 / 35卷 / 24期
基金：
中国国家自然科学基金;
关键词：
Long period fiber grating (LPFG); core-distortion; strain measurement;
D O I：
10.1109/LPT.2023.3325428
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 compact strain sensor based on core-distortion long-period fiber grating (CD-LPFG) is proposed and investigated. The manufacturing of the sensor includes pre-twisted CO2 laser polishing and hydrogen-oxygen flame heating method, which leads to the characteristic of periodic core-distortion of the fiber structure. Within the strain measurement range of 0-350 mu epsilon, the proposed sensor exhibits a high strain sensitivity of -41 pm/mu epsilon. Additionally, within the temperature measurement range of 25-100 degrees C, the sensor demonstrates a temperature sensitivity of 56 pm/degrees C. Furthermore, the sensor has a compact structure with a length of only 5mm, making it highly suitable for precise measurement applications in limited spaces.
引用
收藏
页码：1339 / 1342
页数：4
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