激光测速

计数型激光测速仪信号处理器及其应用研究

Counting LDA signal processor and its application

应用二维激光测速系统研究面流消能的紊动特性

Experimental study on turbulent characteristics under bucket energy dissipators by using a 2-D LDA system

基于激光测速仪的秒流量控制AGC

Control over the Mass Flow AGC with Laser Velometer

激光测速技术与CFD的结合将是未来搅拌系统优化与设计的必然趋势。

Laser Doppler measurement techniques combining with CFD will be the powerful tools in optimization and design of stirred vessels in the future .

本文首先介绍了一种新的测量二维流场的工具：粒子图像激光测速系统PIV。

At first , This thesis recommends one new measurement two-dimentional to shed the tool of field : Particle image velocimetry .

采用不接触测量，如PIV激光测速等可视化测量手段，便于对级间流场的分析研究。

The interstage flow field is analyzed by means of noncontact measuring and visualization device , such as PIV laser velocimeter .

提出了脉冲式半导体激光测速仪具体设计方案，对误差来源进行分析，并采用模数转换技术AD电路来提高测速精度。

We also bring forward the idiographic plans and analyze the cause of the errors . There are many virtues to improve the precision of measure velocity by using modulus conversion technique A / D electrocircuit .

本文介绍差动式多普勒激光测速仪的工作原理和光学系统，解释其差动机理的应用及对改善SNR的作用。

The principles of operation and the optical sketch of polarized Doppler Laser Velocimeter have been presented in this paper . The mechanism of its differential utilization and the effect on improvement of S.N.

MHDP试验船激光测速系统

A velocity measuring system using laser light for mhdp trial ship

为了提高激光测速系统中信号处理速度，获取更高的测量精度和实时检测能力，本文从硬件结构、传输策略和试验结果入手，提出了利用DSP芯片作为频率分析处理器的多普勒测速系统。

For improving signal processing speed in Laser Doppler Anemometry ( LDA ) system to obtain higher measure precision and real-time detection , a LDA signal processor using DSP as spectrum-analyzing processor was described based on hardware frame , transmission strategy and trial results .

本文自行设计制作长1m的PVC静态实验模型，运用激光测速系统（LDV）和U形管系统检测实验工况气垫压力分布和速度矢量分布。

Experimental model was made of PVC and its 1 meter long . With the Laser Doppler Velocimetry ( LDV ) and U-shaped tube system , the air-cushion pressure distribution and air-cushion velocity vector distribution under experimental condition are detected .

冷轧薄板厂二次冷轧机组采用TSI公司的Model3000型激光测速仪对带钢速度进行检测。

Model 3000 LDV ( Laser Detector Velocity ) made by TSI is applied in DCR ( Double Cold Reduction mill ) line to detect the rolling speed of strip .

全光纤光子多普勒速度测量（PDv）系统是一种新型的激光测速系统，可广泛用于冲击波、爆轰波以及其他短时高速运动物体的速度测量。

Photonic Doppler Velocimetry ( PDV ) is novel of laser velocimetry system . It is widely used in the velocity measurement of the shock wave , detonation wave and other short-time high-velocity moving objects .

利用有效光幕区为Φ500mm的激光测速系统对7.62mm弹丸的速度进行了测试，给出了试验波形和一组测试数据。

It gives the typical sampled waveform and a series of speed data of Φ 7.62 mm projectile measured by the retroreflector laser screen system with effective screen area of Φ 500 mm .

介绍了激光测速技术的原理以及激光多普勒测速仪（LDV）的组成，对LDV用于测量水射流流场的技术和方法进行了详细讨论，为这一先进技术的进一步应用积累了经验。

This paper introduced the principle of velocity measurement by laser and the components of LDV . The technique and method of LDV for water jet measurement were discussed in detail ; the experiences were accumulated for the further application of this advanced measurement technique .

为保证此搅拌容器中的液体流速接近塔内操作条件下的流速，以确定适宜的搅拌器转速，我们用DANTECMODEL2020激光测速仪测定了不同搅拌器转速下容器中液体的流速。

The speed of liquid flow in this tank with different rotating speed of stirrer was measured by a laser tachometer of DANTEC MODEL 2020 to ensure it equals the speed of liquid flow within the column .

大面积激光测速靶光学系统的设计与分析

Optical Design and Analysis of Laser Screen for Projectile Velocity Measurement

激光测速技术及其在叶轮机械旋转流动中的应用

Laser Velocimeter and Its Application to Rotating Flow Measurement in Turbomachinery

提出一种结构简单、测量精度高的频谱分析型激光测速系统。

A simple spectrum-analyzing type laser velocimeter with high-accuracy is proposed .

应用共轴型二维激光测速系统测量孔板管流的湍流特性

Measurements of turbulent orifice flow using an on-axis 2-D LDV system

激光测速靶连发弹丸速度测试系统

Test System for Measuring Velocity of Repeating Projectile in Laser Screens

超高速微小碎片激光测速系统研制及应用

Development and Applications of Laser Velocity Measuring System for Hypervelocity Particle

激光测速在复杂体型叉管流场测量中的应用

Application of LDV to measure the flow fields in complicated bifurcated conduits

二维流场的激光测速方法

The measuring method of two dimensional flow velocity with laser

冷连轧系统中激光测速仪的工作原理与应用

Principle and Application of Laser Speedometer to Cold Tandem Rolling

激光测速仪在实验流体力学中的应用

Application of the Laser Measuring Velocity Instrument in Experimental Hydrodynamics

利用三维激光测速方法研究悬停状态下的桨尖涡

3D LDV measurements of rotor blade tip vortex in hover

激光测速信号处理器的智能化研究

Investigation of the Intelligent Signal Processor in Laser Doppler Anemometer

双差动声-光频移二维激光测速系统及其应用

Two component LDV system with dual-differential acousto-optical frequency shifting and Its Applications

激光测速频移量的选择准则

Criterion of Choosing the Frequency Shift in LDV System