枪弹测速系统可以测量弹丸速度大小。
Bullet velocity Measurement System can measure the projectile velocity bullets.
该文介绍了结合光脉动法和相关测速法同时在线测量煤粉粒径、浓度和速度的技术和装置。
This paper presents the on line measurement of size, concentration and velocity of pulverized coal with light fluctuation and correlation method.
利用激光测速技术测量了平板水平放置时气泡流最外缘处的水平速度及厚度。
The horizontal velocity at the outermost edge and thickness of bubbly flow are measured by laser Doppler velocity technique.
单个的非正弦波脉冲没有测速能力,但一组这样的脉冲即可进行速度测量,并且速度分辨力由距离分辨力决定。
While the single nonsinusoidal radar impulse is not capable of measuring target velocity, a sequence of such pulses can be used to measure the velocity.
针对弹道散布范围大或被测飞行物体尺寸大的测速场合,介绍了一种实现大面积有效靶区激光光幕速度测量的方法。
A novel Laser screen velocity measuring method with large effective screen area is introduced for some special velocity measuring occasions like wide spreading range or big-size flying objects.
为了实现高准确的测量对象的速度,激光多普勒测速雷达系统建立和频率估计算法研究。
In order to achieve high accurate measurement of object's velocity, a laser Doppler velocity radar system is established and the frequency estimation algorithm is investigated.
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.
测速机构采用数字速度传感器测量皮带速度,精度高计量准确。
Velocimetry organization adopt digital speed sensor measuring belt speed, High precision measurement accuracy.
测得的结果为弹丸飞行方向上的速度值。该方法与雷达和常规天幕靶测速系统相比,测量精度较高。
Contrasted with the radar and the general sky-screen system, the method presented here has higher precision.
介绍了利用激光多普勒测速仪(LDV)测量离心泵蜗壳流道内部速度场时的速度与流量两种校核方法。
Two kinds of methods for verifying the precision of LDV when used in measuring velocity fields of the centrifugal volute are introduced.
本文提出了一种基于多普勒频移的全光纤光路宽速度测量范围的测速传感器——多普勒光纤速度传感器。
This dissertation puts forward a kind of sensor with wide measure velocity range based on the Doppler Frequency Shift and all-fiber path, namely Doppler Fiber Velocity sensor.
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.
通过风洞实验的方法,针对不同形态的6组横向沙丘模型,采用粒子图像测速系统,测量了模型沙丘周围气流水平速度和垂直速度的变化规律。
In this paper, the variations in the horizontal and vertical velocities over 6 different transverse dune models are investigated in a wind tunnel by applying the particle image velocimetry (PIV).
带有磁性测速头的SE型号速度指示器特别适合于测量ipm,FPM和YPM中的低表面速度和较低表面速度。
The Model SE with its magnetic tachometer head is particularly suited to measuring low and very low surface speeds in IPM, FPM and YPM.
采用激光测速仪测量子弹速度,动态应变仪和TDS420 A数字示波器记录应变时程曲线进行动力响应分析。
The data of bullet velocities and time history curves of strain were recorded respectively by laser setup, high dynamic strain indicator and TDS420A oscilloscope.
模拟计算搅拌功率准数及桨叶排出流量准数与实验结果相差很小,数值模拟速度分布与实验测量结果吻合较好,且预测速度数值明显优于“黑箱”模拟方法。
The model prediction velocity distributions of this study agree with experimental measurements, and are in closer agreement with the experimental data than those based on "block box" method.
该系统的速度反馈元件采用测速发电机,角度测量元件采用光电编码器。
Measuring generator is used for velocity feedback in this system, and photoelectricity coding component is used for Angle measure.
开发的流化床内颗粒速度场测量系统应用于流化床内颗粒的速度测量,实验表明,这种测速法的相对误差在5%以下,具有较高的精度。
Experiment shows that the system developed in this paper can be applied successfully in the measurement of velocity of particles in fluidized bed (with relative error less than 5%).
用相位多普勒颗粒测速仪(PDPA)测量了颗粒的平均与脉动速度,研究了壁面粗糙度对水平后台阶气粒两相流动的影响。
The effect of wall roughness on gas-particle flows in a horizontal backward-facing step is studied using a phase-Doppler particle anemometer (PDPA) by measuring the mean and RMS particle velocities.
用这些公式和一台一维激光多普勒测速计,测量了方形管道中水流的二维湍流速度脉动的均方值和雷诺切应力。
Using these formulas and a 1-d LDA, mean square value of 2-d turbulent velocity fluctuation and Reynolds shear stress have been measured for water flow in a square duct.
为探索闪急沸腾喷雾的形成机理,以氟里昂R12为试验掖体,采用激光多普勒测速仪(LDA)测量了稳定流动条件下粒子的速度分布。
In order to understand flash boiling injection, the drop velocity distribution in steady spray of freon R12 as test liquid was investigated by using LDA technique.
该装置具有对非牛顿流体测量精度高,且检测速度快、操作简单等优点。
Our instrument has many advantages, such as high accuracy, rapid measuring speed, and easy operation.
立体视觉测量的单摄像机结构相对双摄像机结构在结构尺寸、检测速度和经济成本上有明显的优势,有着广泛的应用前景。
Comparing to dual camera structure, single camera stereo vision measurement has an obvious advantage of structure size, measurement speed and cost, also it has a wide application prospect.
对感应测速传感器的组成、工作原理、水下速度测量的关键问题进行了分析讨论。利用测量系统,获得自动机的运动速度,根据实测的数据初步分析实验现象。
The composition and working law of the induction velocity measurement sensor and some critical problems about underwater velocity measurement have been analyzed and discussed.
对感应测速传感器的组成、工作原理、水下速度测量的关键问题进行了分析讨论。利用测量系统,获得自动机的运动速度,根据实测的数据初步分析实验现象。
The composition and working law of the induction velocity measurement sensor and some critical problems about underwater velocity measurement have been analyzed and discussed.
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