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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.

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.

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介绍一台脉冲激光遥控测速仪的结构和实验结果。The structure and the experimental results of a remote controlled pulsed laser Doppler velocimeter is described.

时间间隔测量是影响激光测速系统精度的重要因素。The precision of the pulsed laser velocimeter system was decided by the precision of the time interval measurement.

试用表明,YR电磁流速仪在黄河上测流是可信的。All results indicate that YR-Electromagnetic flow velocimeter can be pratically used to measure flow velocity in Yellow River.

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.

本文介绍作者研制的两维、可辨别流向的激光多普勒测速仪的原理、特点及应用。This paper describes the operation principles, characteristics and applications of a two-dimensional laser Doppler velocimeter.

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论文最后测量了系统的有关性能参数,并进行了误差分析和实验测量。Some performance parameters of the sound velocimeter system are given, error analysis and pool measurement are carried out in the end.

本文介绍了用颜料示踪和最新的油膜技术对流动进行可视化记录以研究淹没丁坝群的近体流场分布的试验结果。The dye injection and oil-film method together with electromagnetic velocimeter are applied to measure the flow field around spur dikes.

在应用激光多普勒测速仪测量旋转流场时,如果测量窗口随着旋转流场一起转动,就会产生窗口效应问题。In laser Doppler velocimeter application to rotational flow, the window effect will appear when measurement window rotates with the flow field.

在介绍TDC-GP2主要功能和工作特性的基础上,给出了系统的整体设计方案以及系统硬件和软件的实现方法。The main functions and features of TDC-GP2 are introduced. The hardware and the software of the pulsed laser velocimeter system are also presented.

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.

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采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试,并将其结果进行对比。PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter.

首先采用高磁感应强度的钕铁硼强磁材料研制新型磁电式粒子速度计,其性能高于前人文献所报道的性能。First of all, the new magneto-electric velocimeter made of Nd-Fe-B magnet is developed and its magnetic induction is stronger than other velocimeters reported.

首先用高磁感应强度的钕铁硼强磁材料研制出新型磁电式粒子速度计,其性能高于前人文献所报道的性能。First of all, the new magneto-electric velocimeter made of Nd-Fe-B magnet was developed, and its magnetic induction is stronger than other velocimeters reported.

本文第一章介绍我们的超声波声速仪的原理和误差分析,并给出它和回呜法的比较。In the first part of this paper, the principle and the error analysis of our ultrasonic velocimeter are presented, and a comparison with the"Sing Around Velocimeter"is given.

本文给出了一台单级和一台十级轴流压气机的算例以及计算与激光测量结果的比较。The results of improved S2m calculations for both a single-stage and a ten-stage axial compressor were compared with that measured by Laser-Two-Focus velocimeter in compressor rotor.

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阐述了半导体激光技术发展现状,国内测速仪的应用现状、现有激光测速仪存在的弊端。This paper narrates the development actuality of the semiconductor laser technology, the application actuality of domestic velocimeter and the defects of existing laser velocimeters.

在平整机延伸率控制系统中,常用的测量装置是脉冲发生器和激光测速仪。其中激光测速仪的控制精度更高。In the control system for skin pass mill elongation, the measuring devices in common use are pulse generator and laser velocimeter, of which the control accuracy of the laser velocimeter is higher.

在平整机延伸率控制系统中,常用的测量装置是脉冲发生器和激光测速仪。In the control system for skin pass mill elongation, the measuring devices in common use are pulse generator and laser velocimeter , of which the control accuracy of the laser velocimeter is higher.