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Based on description method of damping motion in mechanical vibration, variables movement of generator are divided into two basic motion models: damping oscillation and critical damping motion. Detail methods of extracting damping parameters from simulation data is introduced to establish variable motion models. An approximate method is put forward to simulate low-frequency signal and generator response characteristic, from which motion models and damping parameters of main variables are obtained. The influences of oscillation amplitude, frequency and initial operating point of power system to the motion damping parameters are analyzed.

借鉴机械振动中阻尼运动的描述方法，将低频振荡下发电机主要变量的运动归纳为阻尼振荡和临界阻尼两种基本运动形态；介绍了从仿真数据提取阻尼参数建立参数运动模型的方法，实现对发电机振荡特性的量化分析；提出一种系统侧低频振荡信号的近似模拟方法，并应用于发电机响应仿真，获得了主要变量的运动模型和阻尼参数；分析了系统侧振荡幅度、频率以及初始工况对发电机功角振荡的影响。

Functions include wave form addition, wave form subtraction, Lissajous Pattern display, transient signal recording, RMSamplitude spectrum display, relative amplitude spectrum display, phase spectrum display, auto correlation coefficient display, cross correlation coefficient display, function generation, and multi-tone generation.

功能包括音形叠加，音形结构，Lissajous Pattern 显示，暂时信号记录，RMS 声谱振幅显示，相关声谱振幅显示，自动相关系数显示，交错相关系数显示，函数生成以及多声音生成。

According to the comparative discovery with the value of theory and experiment: When the cross section ratio is smaller than 100, ANSYS artificial displacement amplitude vs the cross-section ratio represents the direct ratio.

通过与实验值理论值的比较发现：在粗细端截面积比大到100的范围里，ANSYS仿真的位移振幅放大系数与截面积比成正比。

The γ energy spectrums in NaI crystal detector are obtained by establishing a correlation between the deposit energy of γ photon and the output of pulse amplitude.

直接以γ光子在NaI(T1)闪烁晶体中的沉积能量近似对应实际γ能谱仪的脉冲幅度输出。从而得到NaI(T1)探测器中γ射线的响应谱线。

The effect on amplitude of EXAFS from harmonic caused by high order diffraction of crystal monochromator is discussed.

本文讨论了晶体单色器高次衍射形成的谐波对EXAFS振幅的影响。

By using this method, the angular frequency, amplitude, initial phase angle, decay constant of each component in transient voltage and/or current waveforms can be precisely extracted. Also, all other kinds of transient procedure can be analyzed by this method. Thirdly, a new definition of generalized instantaneous reactive power and generalized instantaneous reactive current in dq0 coordinates under any nonsinusoidal and unbalanced three-phase circuit is proposed for the first time. The detection and compensation method for different instantaneous reactive currents are also concerned.

本文首先提出了用于快速高精度频谱分析的一种改进快速傅立叶变换方法，该法具有速度快、精度高、抗混迭、不受采样定理约束、可以分析出谐次大于N／2的频谱系数等特点，可方便地应用于电力系统谐波分析及其它各类频谱分析；然后提出了基于非线性最小二乘优化法的电力系统暂态波形分析方法，可准确求出电力系统暂态电压、电流波形中各个分量的角频率、幅值、初相角及衰减常数，并可广泛应用于各类暂态过程波形分析。

The leakage current increases and some change in the amplitude and frequency spectrum of leakage current pulse signal occurs.

所采集的漏电脉冲信号幅度和频谱均发生了明显的变化。

The experiment results of a time-to-amplitude converter are given and various effects in linearity are dis cussed .

给出了实际时幅转换特性的试验数据及精度分析。

It is shown a new way for fast implementation of CWT based on amplitude modulation techniques for generating wavelet chain.

该方法利用幅度调制技术产生小波链实现小波变换，为小波变换的快速实现提供了新的途径。

This paper studied the fatigue properties of the plain concrete under constant amplitude flexural cyclic loading.

在室内混凝土试件弯曲疲劳试验的基础上，研究了素混凝土受弯试件在等幅重复荷载作用下的弯曲疲劳性能。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。