摘要
提出一种由双玻璃纤维薄片、石英光纤布拉格光栅,及两段玻璃纤维护管组成的,并采用高温胶黏剂封装的片式应变传感器。该传感器不含金属材料,不受强电力电磁干扰。制备出3个传感器原型,将其安装在等强度悬臂梁上进行全面的性能测试实验。测试结果表明:3个传感器均具有良好的测量重复性(误差小于3.43%)和线性(线性拟合系数均大于0.999),应变灵敏度一致性高;温度补偿误差在22pm以内,补偿能力良好;还具有良好的抗蠕变性能。因此,所设计的传感器具有优越的测量性能,能够满足野外环境下电力设施的长期应变监测要求。
This study proposes a sheet strain sensor comprising two glass-fiber flakes,a silica fiber Bragg grating,and two glass-fiber tubes that is packaged by a high temperature-resistant adhesive.The strain sensor contains no metal material,facilitating resistance to strong power and electromagnetic interference.Three sensor prototypes are manufactured and arranged on a constant strength cantilever beam for comprehensive performance test.Experimental results show that all three sensors possess good measuring repeatability(repeatability error<3.43%),fitting linear correlation coefficients(>0.999),and consistency for measuring sensitivities.The sensors also demonstrate good temperature compensation ability(within 22 pm)and creep resistance.These test results indicate that the proposed sensor has a superior measurement performance and can meet the requirements of long-term strain monitoring for electric power facilities in the wild.
作者
陈剑
郭永兴
张礼朋
Chen Jian;Guo Yongxing;Zhang Lipeng(School of Electrical Engineering,Guangzhou College of South China Uniueratty of Technology,Guangzhou,Guangdong 510800,China;Key Laboratory of Metallurgical Equipment and Control Technology,Ministry of Education,Wuhan University of Science and Technology,Wuhan,Hubei 430081,China;Sinohydro Bureau,Co.,Ltd.,Xi'an,Shaanxi 710024,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2020年第9期54-59,共6页
Laser & Optoelectronics Progress
基金
国家自然科学基金(51605348,51827812)
武汉市科技计划项目(2019010702011308)。
作者简介
郭永兴,E-mail:yongxing_guo@wust.edu.cn。
