“激光多普勒效应测微振动”实验改进探析  

A Study on Improving the Experiment of“Testing Microseismic Activitiyby Laser Dopper Effect”

作　　者：周丽[1] 王美娜[1] 

机构地区：[1]海军大连舰艇学院,辽宁大连116018

出　　处：《大学物理实验》2015年第4期18-20,共3页Physical Experiment of College

摘　　要：针对"激光多普勒效应测微振动"实验中影响光拍波形的"毛刺"现象和给波形数计算带来误差的"包络"问题进行研究,通过改进实验装置消除"毛刺"问题,优化实验调整方法,减小"包络"问题。取得了较好效果,提高了实验精度。This paper focuses on two aspects. The first aspect aims at the phenomenon of ＂burr＂ which influ- ences the photo-beat wave pattern in the experiment of laser dopper effect. The other aspect centers on the problem of ＂envelope＂ which brings errors to the number of the wave pattern in terms of calculation. By impro- ving the experiment facility, this paper puts forward suggestions to eliminate the problem of ＂burr＂, optimizes the experiment＇s adjustment methods and reduces the ＂envelope＂ problem. Therefore ,the experiment＇s accu- racy is improved and thus works quite well.

关 键 词：激光多普勒效应 误差分析 实验改进 

分 类 号：O4-33[理学—物理]