传感技术学报2025，Vol.38Issue(12)：2136-2141,6.DOI:10.3969/j.issn.1004-1699.2025.12.004
超低温环境下特种钢表面粘贴式FBG传感特性研究
Research on the Sensing Characteristics of Surface-Mounted FBG Sensors on Special Steel Surfaces in Cryogenic Environments
摘要
Abstract
The fuel supply system of aerospace engines is often in an ultra-low temperature environment and are prone to the cross-influ-ence of strain and temperature.Therefore,the cryogenic sensing characteristics of surface-bonded FBG on the surface of the SS-T3 and 0Cr18Ni9 special steel are studied.A thermo-mechanical finite element model is established to simulate and analyze the influence of bonding parameters on strain transfer during temperature variations from 77 K to 293 K.Finally,verification experiments are carried out through a self-made cryogenic test device.Results indicated that,in the low-temperature range,the wavelength of FBG exhibits a nonlin-ear relationship with temperature,the temperature sensitivity coefficients for SS-T3 and 0Cr18Ni9 stainless steel are 18.48 pm/K and 22.36 pm/K,respectively,between 143 K and 293 K.关键词
超低温环境/光纤布喇格光栅/应变传递/温度补偿/特种钢Key words
cryogenic environments/FBG/strain transfer/temperature compensation/special steel分类
信息技术与安全科学引用本文复制引用
范小龙,于嘉澄,戴玉堂,唐健冠,杨雨微..超低温环境下特种钢表面粘贴式FBG传感特性研究[J].传感技术学报,2025,38(12):2136-2141,6.基金项目
JG合作项目(202401hx0053) （202401hx0053）
