本文的着重于地脉动测试自由场地自振频率的机理研究。
This paper emphasize in study of mechanism of vibration frequency for free site in microseism testing.
采用安装在泵腔上的压阻式微型压力传感器完成微泵泵腔压力脉动测试。
A piezoresistive micro pressure transducer fitted on the top of the chamber is used to measure the pressure pulsations in the micropump chamber.
提出了液压泵流量脉动测试的实用近似方法，对液压柱塞泵流量脉动的测试技术进行了系统的试验研究。
The paper describes an overall experimental research on the techniques for measuring the flow ripples of hydraulic piston pumps, according to the practical method for measuring pump flow ripples.
并以一台较大排量的轴向柱塞泵为被试泵，建立了流量脉动测试系统，实现了多种压力下被试泵流量脉动的测试。
An axial piston pump with large displacement has been used as the pump under test, a measurement system has been put forward and flow ripples at different pressures have been determined.
利用脉动法对-试验工程进行了动力特性测试，得到了该结构的固有频率和振型。
The dynamic characteristics of an experimental structure were tested by means of pulsating method and frequencies and modes of structure are gained.
介绍利用大地脉动作为激振振源，测试并分析高层建筑的脉动响应信号及动力特性。
The measurement and analysis of the pulsation response and dynamic behavior of tall buildings taking the earth pulse as the vibromotive source is introduced.
在风洞中对水下航行体模型尾部壁面脉动压力与近壁湍动速度进行同步测试及处理分析。
The wall pressure fluctuations and near-wall turbulent flow were jointly measured at the stem of an underwater vehicle model in CSSRC Wind Tunnel.
理查德正在非常运动，并测试了新的PE6脉动渔民铸造这种鱼棒。
Richard was being very sporting and was testing out a new PE6 Ripple fisher casting rod on this fish.
结果表明理论与实测的前几阶结构动力特性基本吻合，用脉动法对桥梁结构的动力特性进行测试是有效的。
It shows that the dynamic properties of the first steps by theory essentially agree with that by practical test, and that the impulse response method is efficient in dynamic test of bridge.
膜片重载压力表特别适用于会出现强机械振动或压力脉动的测试。
The Heavy Duty pressure gauges with diaphragm system are particularly suitable for measuring jobs where strong mechanical vibrations or pressure pulsed may arise.
本文对六十年代以来国内外螺旋桨脉动压力实船测试的研究作了一个简要的回顾。
This paper is a brief survey on the researches of measurements of the propeller induced pulsating pressure on the full-scale ships over the last forty years.
基于测试的气动参数和模拟的脉动风速场，给出了车辆和桥梁静风力、抖振力及自激力的时域表达式。
Based measured aerodynamic parameter and simulated wind speed field, time-domain expression of static wind load, buffeting load and self-excited load for bridge and vehicle are introduced.
测试结果表明，调节阀处于不稳定工作状态即阀杆振动工况取决于脉动压力与阀杆固频率是否同频，并非其脉动压力值大小；
These results show that the vibration of control valve rod depends on if its frequency and one of dynamic pressure pulse is same but not the magnitude of pulse value.
采用微型压力传感器测试了无阀压电微泵泵腔的压力脉动，并与仿真结果进行比较。
Experiments of the valveless micropump are carried out, including static and dynamic characteristic tests and the results are compared with the simulation results.
数值模拟得到的尾水管中压力脉动的频率，与湖北中试所在隔河岩进行测试的结果基本一致。
The pressure fluctuation in the draft tube is obtained. The calculated pressure fluctuation frequency agrees with the test data.
数值模拟得到的尾水管中压力脉动的频率，与湖北中试所在隔河岩进行测试的结果基本一致。
The pressure fluctuation in the draft tube is obtained. The calculated pressure fluctuation frequency agrees with the test data.
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