Highly sensitive torsion sensor based on triangular-prism-shaped long-period fiber gratings

作     者：Senyu Wang Yiwei Ma Xiaoyang Li Yang Yi Cuiting Sun Jingyu Lin Chengguo Tong Yuxiang Li Tao Geng Weimin Sun Libo Yuan 王森宇;马一巍;李晓飏;易杨;孙翠婷;林静雨;佟成国;李玉祥;耿涛;孙伟民;苑立波

作者机构：College of ScienceHarbin Engineering UniversityHarbin 150001China Photonics Research CenterGuilin University of Electronics TechnologyGuilin 541004China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2021年第19卷第4期

页      面：28-31页

核心收录：

学科分类：070207[理学-光学] 07[理学] 080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 0702[理学-物理学] 

基　　金：supported by the Joint Research Fund in Astronomy under cooperative agreement between the National Natural Science Foundation of China(NSFC)and Chinese Academy of Sciences(CAS)(Nos.U1831115,U1631239,and U1931206) the Dean Project of Guangxi Key Laboratory of Wireless Broadband Communication and Signal Processing(No.GXKL06190106) the Key Projects of Natural Science Foundation of Heilongjiang Province(No.ZD2019H003) 

主　　题：long-period fiber grating torsion sensor CO_(2)laser etched method 

摘      要：We propose and investigate a compact optical fiber sensor that aims to measure the torsion in both amount and direction with high *** sensor is configured by a triangular-prism-shaped long-period fiber grating,which is fabricated by the high frequency CO_(2) laser polished *** unique design of the triangular-shaped structure breaks the rotational symmetry of the optical fiber and provides high sensitivity for torsion *** preliminary experiments,the torsion response of the sensor achieves a good stability and *** torsion sensitivity is 0.54 nm/(rad/m),which renders the proposed structure a highly sensitive torsion sensor.