Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed.
采用零差的相干探测方式，设计并实现了一套光纤结构的激光多普勒振动计。
This paper describes the principle structure and operation process of a two dimensional laser Doppler vibrometer.
描述一台两维激光多普勒测振装置，介绍其基本原理、组成部分及工作过程。
Base on the heterodyne laser Doppler theory, a heterodyne laser Doppler vibrometer (LDV) with fiber structure was designed and implemented.
基于外差激光多普勒原理，设计并实现了一套光纤结构的外差式激光多普勒振动计(LDV)。
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.
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。
With the laser scanning vibrometer, based on the Doppler effect, the muzzle vibration velocity is measured.
炮口振动速度测试可以采用激光测振仪，它是基于多普勒原理的激光非接触测振技术而研制的。
With the laser scanning vibrometer, based on the Doppler effect, the muzzle vibration velocity is measured.
炮口振动速度测试可以采用激光测振仪，它是基于多普勒原理的激光非接触测振技术而研制的。
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