摘要
将碳纤维复合材料(CFRP)与光纤传感器相结合构成智能先进复合材料,对固化于CFRP的光纤布拉格光栅应变传感特性进行了实验研究.实验结果表明:光纤布拉格光栅B ragg波长对应变表现出很好的线性和重复性;布拉格光栅与基体材料粘结情况的好坏,对应变灵敏性与可靠性有直接影响;用电阻应变仪对布拉格光栅光纤传感器应变传感特性进行实验对比标定,得出了表征FBG性能的应变传感灵敏系数.结果表明测试数据稳定可靠,FBG光纤传感器具有优异的应变传感特性,为智能先进复合材料的研发与应用提供了重要依据.
An advanced composite was prepared by combining carbon fiber reinforced plastic （CFRP） with fiber Bragg grating（FBG） sensor, then the properties of strain sensing for fiber gratings have been studied experimentally. Experimental results show that Bragg wavelength of fiber Bragg grating has good linearity and repeatability with its strain, and the sensing properties are greatly influenced by the adhesive properties between fiber Bragg grating and the host material. A calibration test has been performed on FBG with strain gauges, and the strain sensing sensitivity coefficient of the properties of FBG was gained. The result revealed that the testing data of fiber Bragg grating was stable and reliable, Experimental results have made a good theoretical and experimental prepare for smart and advanced composite＇ s research and application.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2006年第10期1813-1815,1818,共4页
Journal of Harbin Institute of Technology
基金
哈尔滨市科技攻关计划资助项目(0111211107)
黑龙江省自然科学基金资助项目(2002.E01-10)
关键词
碳纤维复合材料
固化
光纤布拉格光栅
光纤传感器
应变传感
carbon fiber reinforced plastic （CFRP）
curing
fiber Bragg grating （FBG）
optical fiber sensor
strain sensing
