设计出实验圆柱，并对微脉动信号提取中的应变片粘贴，应变仪调试等技术做了研究；
Design the cylinders, do the researches on pasting the strain gauge and debugging the instruments;
因而可以利用壁面压强脉动信号的分析结果间接反映经过边界层的相干结构的时间特征。
Therefore the analysis results of time scale of fluctuating wall pressure can be used to indicate the time features of coherent structure of the turbulent boundary layer.
根据压强脉动信号波形和频域的分析结果，研究了三相流化床不同空间位置压强的脉动特征。
Accordimg to the results of wave form and frequency domain analyses of pressure fluctuation signals, characteristics of pressure fluctuation at different space locations were discussed.
通过对北京地区八幢建筑物脉动信号的分析，研究了考虑地基与结构相互作用的影响时，体系基本振型的特点。
The characteristics of the fundamental mode of vibration of soil-structure interaction system are studied through the analysis of experimental results of eight building structures in Beijing.
对管内流体流量的温度相关测量法进行了理论分析，并对柴油机排气温度脉动信号进行相关处理，得出相关流量。
The theoretical analysis is performed for in tube flow measurement by correlation methods, and the correlation flow is obtained from analyzing stochastic temperature signals of diesel gas.
本文利用自相关函数分析燃烧过程的压力脉动信号，并根据不同燃烧状况下压力脉动自相关曲线对燃烧状况作出正确判断。
In this paper, autocorrelation function method is used to analyze pressure fluctuant signals and an right judgment of combustion condition can be obtained from autocorrelation analysis curves.
与采用超声波、电容作为传感器的相关测量法相比，利用压力传感器测量压力脉动随机信号的相关测量法成本较低。
Compared with correlation measure by adopting ultrasonic and capacity as sensor, it has lower cost that adopting random signal of fluctuating pressure by pressductor measured.
早期故障信号非常微弱，多呈现低频脉动，容易受到噪声干扰甚至被环境噪声所淹没。
The early fault signal is very faint, low frequency appears more to pulse, easy to be interfered by the ambient noise even submerged.
以空间矢量调制方法来获得逆变器的开关信号，实现了小的转矩脉动和恒定的开关频率。
The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency.
分析结果表明，在不同的探测波长上，湍流脉动引起的时均辐射信号变化不同；
The results show that, the influences of turbulent fluctuation on time-averaged infrared signal in different wave band are different.
本文介绍了一种基于脉动高频电压信号注入法实现面装式永磁同步电机无传感器控制的方法。
A method to implement sensorless control of Surface Mounted PMSM based on fluctuating high frequency voltage signal injection was introduced.
本文对于反电动势波形接近正弦的永磁无刷直流电动机，提出一种基于六个离散位置信号的自同步svpwm控制方法，用于抑制电磁转矩脉动。
For the BLDCM which has a sinusoidal back EMF, this paper presents a self-synchronous SVPWM control method using six discrete position signals for minimizing torque ripple.
本文介绍了作者研制的机械旋转式脉动流量信号发生器的基本工作原理和结构特点。
This paper states a mechanical rotating pulsating flow signal generator and its working principle and structural characteristics.
用脉动法由某15层百货大楼的随机响应信号中识别其动力学参数。
This paper describes the pulsating analysis technique for identifying the dynamic parameters of a 15-story building from its random response signals.
介绍了水轮机压力脉动试验时空化系数、测量位置及测点、信号采样频率及采样时间等因素对试验结果的影响。
In this paper, it is introduced to the influence of cavitation factor, measurement taps, sampling frequency and sampling time on the test result in pressure fluctuation test of the water turbine.
同时，设计了用于牵引逆变器控制的二次数字陷波器以及低通滤波器滤除直流电压信号的二次脉动。
Simultaneously, the second order notch filter and low-pass filter are designed to filter the second order rippled DC voltage signal.
研究脉动流条件下涡街信号的模型，提出频率测量的新方法。
A model of vortex signal in the state of pulsing flow is studied, and a new frequency measuring technique is proposed.
应用脉动法测到的信号分析结构的固有频率和振型，利用作者提出的改进的单纯形法来识别结构刚度。
The frequencies and vibration modes of structures are analyzed with pulsating method and structural stiffness is identified with modified simplex method, which is presented by authors.
与采用超声波、电容作为传感器的相关测量法相比，利用压力传感器测量压力脉动随机信号的相关测量法成本较低。
Compared with correlation measure by adopting ultrasonic and capacity as sensor, it has lower cost that adopting random signal of fluctuating pressure by pressductor...
所进行的各种稳态和动态试验研究表明，该脉动流量信号发生器具有较高的脉动频率和明显的抗干扰能力等优点。
Some advantages of high pulsating frequency and good ability against interference of this flow signal generator are shown in the steady and dynamic experimental research on it.
对静态位移的测量，二极管检波或乘法检波后分别得到的是一含多频或单频交流成分的脉动直流信号，而乘除法检波后信号不含交流成分。
The DC signals after demodulation still contain AC component of one or several frequencies respectively for multiplication or diode methods, but no AC component for multiplication-Division one.
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.
并提出在进行压力脉动试验时，应增加测点、延长采样时间、提高采样频率以避免信号遗漏和信号混叠等现象的发生。
Author suggests that increasing number of measurement taps and prolonging sampling time and enhancing sampling frequency will decrease signals aliasing and leakiness.
首先介绍了脉搏的脉动特征，而后描述了心血管系统模型，脉搏信号检测和频域分析方法。
It is narrated the characteristic information of the pulse and the model of vascular system and the way of detecting and analyzing the pulse in the frequency field.
最后，探讨了旋转、脉动高频电压信号注入法下定子电阻对转子位置估算影响的问题。
Finally, the stator resistance effect of rotor position estimation in high frequency voltage signal injection is investigated.
柔和燃烧的火焰面分散，燃烧反应在空间较大范围内发生，火焰亮度低，OH信号强度和脉动都非常弱。
The flame of mild combustion is distributed in a large space, flame luminosity as well as OH intensity is very low.
柔和燃烧的火焰面分散，燃烧反应在空间较大范围内发生，火焰亮度低，OH信号强度和脉动都非常弱。
The flame of mild combustion is distributed in a large space, flame luminosity as well as OH intensity is very low.
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