传感技术学报2018，Vol.31Issue(3)：347-349,3.DOI:10.3969/j.issn.1004-1699.2018.03.005
夹持式封装低温敏FBG应变传感器的设计
Design of Holder Type Packaging Fiber Bragg Grating Strain Sensor with Low Temperature Sensitivity
摘要
Abstract
A kind of fiber Bragg grating strain sensor with low temperature sensitivity was designed. There was the expansion difference which came from the thermal expansion coefficient and the inner tube and outer tube,also there existed the difference due to thermal expansion and thermo-optic effect. The deformations of fiber Bragg grating of these two kinds of differences could be offset to achieve temperature compensation. The adhesive was used to con-nect the inner tube and outer tube,so do the connection between separating warm casing and holder type tube. Hence,the packaging of fiber Bragg was realized. The experiment indicated that the temperature sensitivity coeffi-cient of the sensor was 0.78 pm/℃,which was 7.2% of the bare grating's,and the temperature sensitivity is greatly reduced. The strain sensitivity coefficient was 1.377 pm/με.关键词
夹持式/封装/低温敏/光纤光栅/应变传感器Key words
holder type/packaging/low temperature sensitivity/fiber bragg grating/strain sensors分类
信息技术与安全科学引用本文复制引用
王永洪,张明义,张春巍,刘倩,王伟..夹持式封装低温敏FBG应变传感器的设计[J].传感技术学报,2018,31(3):347-349,3.基金项目
国家自然科学基金项目(51778312) （51778312）
山东省重点研发计划项目(2017GSF16107) （2017GSF16107）
山东省自然科学基金项目(ZR2016EEP06) （ZR2016EEP06）
