高压物理学报2018，Vol.32Issue(1)：91-96,6.DOI:10.11858/gywlxb.20170533
全光纤位移干涉技术在SHPB实验测量中的应用
Application of an All-Fiber Displacement Interferometer on SHPB Experiment Measurements
摘要
Abstract
In the present study,to directly measure the radial strain of a metal sample loaded by the split Hopkinson pressure bar (SHPB) facility,we developed a new all-fiber displacement interferometer that could output signals of invariable strength by adopting a semiconductor optical amplifier (SOA) followed by an erbium doped fiber amplifier (EDFA) to control the light intensity reflected from the measured sample during the dynamic measurement process.The theoretical study showed that the displacement measurement resolution was free from the fluctuation of the output intensity,and the experimental results demonstrated that this new interferometer could measure the elastic and plastic strains of metal sample loaded by the SHPB with high resolution.关键词
DISAR/分离式霍普金森杆/掺饵光纤放大器/半导体光放大器/应变Key words
displacement interferometer system for any reflector (DISAR)/split Hopkinson pressure bar (SHPB)/erbium doped fiber amplifier (EDFA)/semiconductor optical amplifier (SOA)/strain分类
数理科学引用本文复制引用
翁继东,李英雷,陈宏,叶想平,叶素华,谭华,刘仓理..全光纤位移干涉技术在SHPB实验测量中的应用[J].高压物理学报,2018,32(1):91-96,6.基金项目
中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室基金(9140C671001140C67286) （9140C671001140C67286）
