简述了激光多普勒测速及流场显示原理;
The principle of Laser Doppler Velocimetry and the method of showing the fluid field are briefly introduced.
应用激光多普勒血流仪监测脑血流量的变化。
本文利用快速傅里叶变换进行激光多普勒信号处理。
According to the characteristics of laser Doppler signal, using the fast Fourier transform to deal with the Doppler signal.
并应用激光多普勒技术测量基底动脉闭塞前后的血流值。
The values of blood flow were measured by Laser-Dopplar technique before and after basilar artery occlusion.
介绍了激光多普勒测量技术的原理和后散射型固体表面测量方式。
The principle of Laser Doppler Velocity (LDV) and the method of back scattering are presented.
同时,此误差校正方法同样适合高精度激光多普勒扫描测量系统。
And the revising methods were also adapted to precise laser Doppler scanning measurement system.
激光多普勒测量技术在流体以及固体表面测量中得到了广泛的运用。
The Laser Doppler Velocity (LDV) is used widely to measure the liquids and the solid surface parameters.
王仕康。郭晓明。刘昌文激光多普勒测速仪的一种光电调制反馈方法。
Guo A. Wang X M. Liu S K New LDA system utilizing the optic-electro-hybrid feedback technique.
本文设计了一套激光多普勒测速系统,并对该系统作了理论分析和计算。
A laser Doppler velocimetry system is designed, and its theoretical analysis and computation are made.
激光多普勒测速以其高精度、使用方便而在速度测试领域得到广泛的应用。
Laser Doppler velocity is widely used in the measurement field of velocity for its high accuracy and easy-used property.
采用激光多普勒测速仪,对超细旋液粉碎器工作腔内流场进行测量和研究。
The flow fields of ultra micro rotary fluid fragment or were measured and investigated by using laser Doppler anemometer.
用激光多普勒干涉测速仪观察直流电流对纯音诱发的基底膜振动速度的影响。
The basilar membrane vibration was elicited by tone and the effect of direct current stimuli were observed by Laser Doppler interference velocimeter.
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。
This paper describes the principle structure and operation process of a two dimensional laser Doppler vibrometer.
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。
Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed.
激光多普勒测速技术(LDA),是一种流体速度的无接触式光学测量方法。
Laser Doppler Anemometry (LDA) is a non-contact optical method for measuring flow velocity.
激光多普勒图象诊断系统(LDPI)是上世纪末医学诊断仪器的最新成果之一。
Laser Doppler Perfusion Imager system (LDPI) is a uptodate medical diagnoses production at the end of last century.
VISAR是目前激光多普勒测速仪器中最具代表性的一种,本文作了重点介绍。
VISAR is the best typical kind of laser Doppler velocity interferometer at present and is focal point in this paper.
自混合型的半导体激光多普勒测速仅提供了一个简单、便利的测量血流速的方法。
It is thought that the velocimeter can offer a simple and compact method to measure the speed of blood flow.
结论:两点闭塞基底动脉效果可靠,激光多普勒可用来观察局部血流动力学变化。
Conclusion: It suggests that the result of basilar artery occlusion is reliable. The change of local hemodynamics can be observed by use of laser-doppler.
解决了安装调试时的困难,为下一步扫描式激光多普勒测振系统奠定了坚实的基础。
So the difficulty in installation and debugging is solved, and the solid foundation for developing the Scanning Laser Doppler Vibrameter is settled.
用三维激光多普勒测速系统测量研究了一个离心压气机转子近端壁区三维紊流流场。
Three-dimensional turbulent flow of the endwall region inside a centrifugal compressor impeller was studied using a Laser Doppler Velocimetry.
分别于用药14天、28天时,用激光多普勒血流测定仪检测缺血后肢血流灌注量。
In use 14 days, 28 days, using laser Doppler blood flow measurement instrument detection of ischemic hind limb perfusion.
通过折射率匹配方法,应用激光多普勒测速仪测量了突缩与分叉复合管内的液体流场。
Liquid flow field in a tube with a combination of a stenosis and a bifurcation was measured using refractive index matching technique.
方法:采用激光多普勒和电化学方法,测量沙土鼠软脑膜微血管管径和一氧化氮的变化。
METHODS:The changes of pial microvascular diameter of gerbils were measured by Laser Doppler and the changes of NO were measured by electrochemistry.
方法用激光多普勒血流仪检测心衰大鼠与对照组大鼠的皮肤血流量、血流速度和血含量。
Method Cutaneous blood flow, velocity and volume were measured by laser Doppler flowmetry in heart failure rats and healthy rats.
通过流场显示及激光多普勒测速仪测定湍流特性等实验方法考察了管内的无伴流约束射流。
The recirculation phenomena and turbulence characteristics in non-ambient flow confined jets inside the tubes were explored.
激光多普勒测速雷达技术利用激光多普勒效应测量固体目标的运动速度,或者流场速度分布。
Velocity of solid targets and velocity distribution of flowing fields can be measured by Laser Doppler Velocimeter (LDV) technology based on Doppler Effect.
激光多普勒血流监测仪是一种能够实时监测组织内微循环血流灌注的仪器,在临床上应用广泛。
Laser Doppler Flowmetry (LDH) is an instrument that can real-time monitor the perfusion of the microcirculation in the body. It has been applied widely in the medical domain.
激光多普勒血流监测仪是一种能够实时监测组织内微循环血流灌注的仪器,在临床上应用广泛。
Laser Doppler Flowmetry (LDH) is an instrument that can real-time monitor the perfusion of the microcirculation in the body. It has been applied widely in the medical domain.
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