The velocity field measurement by use of the particle image velocimetry and particle tracking velocimetry ( PIV/PTV) system in a tidal estuary model test has advantages of high speed and accuracy.
在潮汐河口河工模型试验中采用粒子测速（PIV/PTV）系统测量流场，具有快速、精度高的优点。
The measurement of velocity of the jet flow field is carried out with the TSI-IFA300 constant temperature anemometer.
利用TSI-IFA300热线风速仪系统对致动器喷口外的流场进行了测量。
It is widely used in the velocity measurement, especially in the field of material impact characteristics researching.
在速度测试领域，特别是研究材料的冲击特性中具有广泛的用途。
Laser Doppler velocity is widely used in the measurement field of velocity for its high accuracy and easy-used property.
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。
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。
Wind tunnel measurement gives the velocity field and vorticity field in intersection plane at different downstream position, which is up to 20 times cord-length.
风洞实验采用PIV测量了沿流向下游不同截面的涡量场和速度场，测量截面距机翼后缘最远达到20倍弦长。
Digital Particle Image Velocimetry (DPIV) is a technology for fast, full field velocity measurement.
粒子图像测速是一种快速全流场测量方法。
The wind velocity variation of different slope directions at coal gangue piles in Sunjiawan was studied with field measurement and statistical analysis.
采用野外观测与统计分析相结合的方法，对阜新市孙家湾煤矿矸石山不同坡向的风速变化进行研究。
The wind velocity variation of different slope directions at coal gangue piles in Sunjiawan was studied with field measurement and statistical analysis.
采用野外观测与统计分析相结合的方法，对阜新市孙家湾煤矿矸石山不同坡向的风速变化进行研究。
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