摘要
光纤光栅传感器(FBG)在侵彻及爆炸冲击测试技术中拥有广泛的应用前景。介绍了光纤光栅传感器的检测原理与关键技术,分析了光纤光栅传感器的动态响应时间及对于高频振动时的可测频率。与传统的爆炸冲击测量方法相比,光纤光栅传感器精度高,抗电磁干扰能力强,体积小,可实现分布式测量,在爆炸冲击领域拥有广泛的应用前景。限于光纤光栅解调技术即采样率发展的限制,光纤光栅传感器在爆炸冲击领域的应用处于起步阶段。介绍了光纤光栅传感器在霍普金森压杆上的应用。提出了当前急需解决的技术问题。
The fiber Bragg grating（FBG）sensor has a wide range of applications in the penetration and explosion impact testing technology.The measurement principle and key technology of FBG sensor are introduced in this paper.Compared with the conventional measurement method of the explosion shock,the FBG sensor has the features of high accuracy,trong anti-electromagnetic interference,small size and distributed measurement.Limited to the development of fiber grating demodulation technology,i.e.the sampling rate,the application of FBG sensors in the field of explosion impact is in its initial stage.The application of FBG sensors to Hopkinaon bar is described.The technical problems which need to be solved urgently are proposed.
出处
《压电与声光》
CSCD
北大核心
2017年第4期614-618,共5页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(51608528)
江苏省基础研究计划基金资助项目(BK2016021801)
关键词
光纤光栅传感器
爆炸冲击
实验技术
动态响应
频响特性
fiber Bragg grating sensor
explosion and impact
experimental technology
dynamic response
frequency response characteristic
