用于环氧树脂固化过程实时监测的光纤折射率传感器  

INSITU CURE MONITORING OF EPOXY RESIN WITH COMMON LOW REFRACTIVE INDEX FIBEROPTIC SENSOR

作　　者：杨春[1] 骆飞[1] 马乃兵[1] 刘晶元 

机构地区：[1]南京航空航天大学测试工程系

出　　处：《复合材料学报》1999年第2期1-5,共5页Acta Materiae Compositae Sinica

基　　金：江苏省青年科学基金;航空科学基金;国家教委回国人员基金

摘　　要：研究了应用光纤传感技术对环氧树脂固化过程进行实时监测的方法。通过将一段光纤的包层去掉构成光纤折射率传感器，利用环氧树脂在固化过程中折射率随固化度增大而增大的特性进行固化监测。应用光线追迹法和局部平面波理论导出光纤固化传感器的理论模型。通过在光纤传感区一端的光纤端面镀全反射膜形成探针型传感结构。对Ｅ５１环氧树脂的等温固化过程进行了实时监测实验。A costeffective approach is supposed to insitu monitor the cure of epoxy resin with common low refractive index fiberoptic sensor. A fiberoptic refractive index sensor was made by removing a short region of the cladding of a low refractive step index optical fiber. The sensor was used to insitu monitor the cure of epoxy resin by measuring the refractive index change of the resin during the cure process. The model of the sensor was developed on the basis of wave guide theory. A probe configuration was made by depositing a high reflective film on the endface of the fiber and mostly facilitate the tooling. Experiments have been performed to test the correctness of the model and the feasibility of the supposed approach.

关 键 词：固化监测 折射率 传感器 环氧树脂 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ323.5[化学工程—合成树脂塑料工业]