摘要
利用空芯光纤和普通单模光纤通过切割和熔接制作出一种内嵌式微腔应变传感器,该传感器兼具传统本征型(IFPI)和非本征型(EFPI)法珀传感器的特点,温度交叉敏感性低且具有较高的机械强度,通过控制切割空芯光纤长度可制作出较短的腔长,从而具有较高的空间分辨率和快速的动态频率响应,在测量瞬时大功率冲击波引起的材料应变场合中有较大应用潜力。
The hollow-core fiber and ordinary single-mode fiber were used to make a kind of embedded microcontroller cavity strain sensor through cutting and welding.The sensor has the features of both IFPI and EFPI sensor,which is characterized by low-temperature crossing sensibility and high mechanical strength.It may make short cavity length through controlling and cutting the length of hollow-core fiber,thus achieving higher spatial resolution and fast dynamic frequency response.It has huge application potential in material strain situations caused by instantaneous high-power impact wave.
出处
《武汉理工大学学报》
CAS
北大核心
2016年第1期80-83,共4页
Journal of Wuhan University of Technology
基金
材料复合新技术国家重点实验室(武汉理工大学)开放基金(2016-KF-3)
关键词
光纤传感
应变传感
法珀腔
空芯光纤
fiber sensor
strain sensor
Fabry-Perot cavity
hollow-core fiber
