| 旋转场辨向层栅激光多普勒测振系统研究 |
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| 引用本文： | 王宝成,卢杰持.旋转场辨向层栅激光多普勒测振系统研究[J].大连理工大学学报,1986(2). |
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| 作者姓名： | 王宝成 卢杰持 |
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| 作者单位： | 大连理工大学机制教研室
(王宝成)，大连理工大学机制教研室(卢杰持) |
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| 摘 要： | 弱散射光的回收处理和速度方向的辨别均是激光多普勒测速技术中的关键问题。 采用单周期层栅可充分回收利用信号光能量，应用旋转场可广泛灵敏和简单方便地辨 别速度方向。在国外近几年研究成果的基础上，自行建成了旋转场辨向层栅激光多普 勒测振系统并成功获得了多普勒信号。本文借助于层栅理论和琼斯矢量综述其机理方 面的理论与实验研究工作，并举例说明基于旋转场辨向各种测试手段中信号叠加方案 的一般分析方法。
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| 关 键 词： | 速度测量 激光多普勒技术 多普勒频移 衍射光栅 旋转棱镜补偿系统/旋转场 琼斯矢量 |
A Study on the Revolving Field Direction Discrimination Laser Doppler Vibrometer |
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| Wang Baocheng,Lu Jiechi.A Study on the Revolving Field Direction Discrimination Laser Doppler Vibrometer[J].Journal of Dalian University of Technology,1986(2). |
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| Authors: | Wang Baocheng Lu Jiechi |
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| Institution: | Dept. of Mechanical Eng. of DIT |
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| Abstract: | The revolving field principle is a simple and sensitive method of velocity direction discrimination. The Jones Vector can be applied effectively to the composition of signals related to the revolving field. Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement. |
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| Keywords: | velocity measurement laser doppler technique doppler shift diffraction gratings rotating prism compensation systems/ revol- ving field Jones vector |
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