Bidirectional Torsion Sensor Based on a Pair of Helical Long-Period Fiber Gratings

被引：43

作者：

Zhang, Hui-Li ^{[1
]}

Zhang, Wei-Gang ^{[1
]}

Chen, Lei ^{[1
]}

Xie, Zheng-Duo ^{[1
]}

Zhang, Zhao ^{[1
]}

Yan, Tie-Yi ^{[1
]}

Wang, Biao ^{[1
]}

机构：

[1] Nankai Univ, Inst Modern Opt, Key Lab Opt Informat Sci & Technol, Minist Educ, Tianjin 300071, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 15期

关键词：

Fiber interferometer; helical long period fiber grating; Mach-Zehnder interferometer; torsion measurement; REFRACTIVE-INDEX; INTERFEROMETER; TEMPERATURE;

D O I：

10.1109/LPT.2016.2533478

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 novel torsion sensor is proposed by cascading two identical helical long-period fiber gratings. On the basis of interference theory, the separation between the dips in the transmission spectrum will be affected by the applied torsion. In addition, a linear response of the split dependent on the torsion rate in different directions can be deduced. Moreover, the ambient temperature has a limited influence on the sensor result. Confirmation experiments were carried out, and good agreement of derivations and experimental results is obtained.

引用

页码：1700 / 1702

页数：3

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