| 激光多普勒位移测量中散射光多普勒信号强度与系统结构参数相关的分析研究 |
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| 引用本文： | 贺顺忠,刘彦宇,蒋诚志,陈林才,张晓芳.激光多普勒位移测量中散射光多普勒信号强度与系统结构参数相关的分析研究[J].计量学报,2002,23(4):256-258,262. |
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| 作者姓名： | 贺顺忠 刘彦宇 蒋诚志 陈林才 张晓芳 |
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| 作者单位： | 天津大学精密测试技术及仪器国家重点实验室,天津,300072 |
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| 摘 要： | 利用激光多普勒效应实现固体面内位移测量时 ,由于散射光的多普勒信号十分微弱 ,有时还出现淹没或不连续 ,影响位移测量精度。本文研究提高信号强度的途径 ,推导出在差动多普勒位移测量系统中 ,散射光多普勒信号强度与系统结构参数的关系 ,为测量系统结构设计提供理论依据
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| 关 键 词： | 多普勒效应 信号强度 结构参数 |
| 文章编号： | 1000-1158(2002)04-0256-04 |
On the Relation Between the Signal Intensity and Parameters of Optical Structure of Displacement Measurement System of Scattering-surface Laser Doppler Effect |
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| HE Shun zhong,LIU Yan yu,JIANG Cheng zhi,CHEN Lin cai,ZHANG Xiao fang.On the Relation Between the Signal Intensity and Parameters of Optical Structure of Displacement Measurement System of Scattering-surface Laser Doppler Effect[J].Acta Metrologica Sinica,2002,23(4):256-258,262. |
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| Authors: | HE Shun zhong LIU Yan yu JIANG Cheng zhi CHEN Lin cai ZHANG Xiao fang |
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| Abstract: | In the displacement measurement system of scattering surface laser Doppler effect, the measuring accuracy is affected by the weakly Doppler signal that may be lost or discontinuous. In this paper, the way to increase the signal intensity is studied, and the relation between the signal intensity and parameters of differential optical structure of displacement measurement system of scattering surface laser Doppler effect is deduced to provide the fundametal basis for design of system optical structure. |
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| Keywords: | Doppler effect Signal intensity Structure parameter |
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