表贴式矿用FBG传感器应力传感特性分析研究
Analysis and research on stress sensing characteristics of surface mounted mining FBG sensors
马仲甜 1李钊枢 2万嘉颖 1路宁 1刘新宇 1周脉勇3
作者信息
- 1. 黑龙江科技大学,黑龙江哈尔滨 150001
- 2. 国网黑河供电公司,黑龙江黑河 164300
- 3. 黑龙江龙煤双鸭山矿业有限责任公司,黑龙江双鸭山 155199
- 折叠
摘要
本文重点对表贴式矿用光纤布拉格光栅(FBG)传感器应力传感特性进行了分析研究,针对表贴式FBG传感器应力传感特性受基体剪切模量进行系统性的分析,建立表贴式FBG应变三层结构理论分析模型,推导表贴式FBG的应变传递数学表达式,从基体的剪切模量角度分析矿用FBG传感器应力传感特性.通过试验分析总结,得出铜基体材料应变和波长线性关系最佳,可达99.89%,表贴式FBG基体剪切模量越大,应力与波长线性度越好,为矿用FBG传感器结构设计和灵敏度优化提供理论研究基础.
Abstract
This paper focuses on the analysis and research of the stress sensing characteristics of surface-mounted mining fiber Bragg grating(FBG)sensors.It systematically analyzes how the stress sensing characteristics of the surface-mounted FBG sensor are influenced by the shear modulus of the substrate.A theoretical analysis model for the strain of a three-layer structure of surface-mounted fiber grating is established,and the mathematical expression for the strain transfer of surface-mounted fiber grating is derived.The stress sensing characteristics of the mining FBG sensor are analyzed from the perspective of the substrate's shear modulus.Through experimental analysis and summary,it was found that the copper substrate material has the best linear relationship between strain and wavelength,reaching99.89%.The higher the shear modulus of the surface mounted fiber optic grating substrate,the better the linearity between stress and wavelength.This provides a theoretical research basis for the structural design and sensitivity optimization of mining FBG sensors.
关键词
矿用光纤布拉格光栅传感器/剪切模量/应力传感特性Key words
mining fiber Bragg grating(FBG)sensors/shear modulus/stress sensing characteristics引用本文复制引用
基金项目
国家电网公司科技项目(2023)(SGHLXA00SZJS2310073)
黑龙江省极薄煤层智能开采关键技术攻关与示范项目(2021ZXJ02A02)
出版年
2024
NETL
NSTL
万方数据