一种全光纤激光干涉测速仪的研究  

Research of All-fiber Single-mode Velocity Interferometer

作　　者：张大鹏[1] 张大治[1] 刘春红[1] 马博宇[1] 郭建麟[1] 

机构地区：[1]中航工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2010年第2期14-15,49,共3页Metrology & Measurement Technology

基　　金：航空科学基金资助项目(2006ZD44009)

摘　　要：应用全光纤激光干涉测速原理,搭建了一套由单模光纤和光纤耦合器组成的全光纤测速仪。通过与激光测振仪的比对实验得到了相对偏差小于1.4%的测速结果,实验利用Hopkinson杆冲击产生标准速度源,提供20.86 m/s瞬时标准参考速度时,实测速度为20.57 m/s。验证了全光纤激光干涉测速仪的可行性。Based on the principle of all-fiber single-mode velocity interferometer,a set of experiment equipment was assembled successfully,which was made up of single-mode fiber and coupler.In the experiment,the all-fiber single-mode velocity interferometer realized the measurement of high velocity with a deviation of 1.4% from a laser vibrometer.In the Hopkinson bar striking experiment,when the reference velocity is 20.86m/s,the measurement result is 20.57m/s.The feasibility of velocity interferometer is proved.

关 键 词：激光干涉测速 全光纤 单模光纤 

分 类 号：TH824[机械工程—仪器科学与技术] TN253[机械工程—精密仪器及机械]