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Taking a real single-phase half-wave controlled rectifier as an example to research rectifier s waveform factor,this article analyzes the relationship of waveform factor and thyristor s trigger delay angle,then draws some important conclusion.

以一个实际的单相半波可控整流电路为例，对整流电路中的波形系数进行了研究。

The instantaneous voltage inner loop is used to control output voltage waveform to track a sinusoidal waveform.

在逆变器控制策略上采用电压瞬时值内环和平均值外环的双环控制方法。并用TMS320LF2407实现数字控制。

To control the output waveform, the mathematic model of three-level inverter is set up. The output voltage instantaneous value control system is employed to obtain high quality output waveform.

为了对输出电压的波形进行控制，该文建立了三电平逆变器的数学模型，使用输出电压瞬时值控制系统来获得高质量的输出电压波形。

Keywords asymptotic waveform evaluation;size dimension;Power/ground planar structure;impedance characteristics;adaptive sectional method;Laurent series expansion;broad-band asymptotic waveform evaluation;multi

渐近波形估计技术；尺寸维；电源/地平面结构；阻抗特性；自适应分段方法；洛朗级数展开；宽带渐近波形估计技术；多维渐近波形估计方法；自适应跳点技术；参数提取；电源完整性分析；参变分析

After studying the exciting waveform in LVI method, it can be concluded that the change of input waveform often shows distortion near the excited terminal.

FRA法和LVI法都能很灵敏地检测到各种绕组的大部分变形故障，但同时两种方法都存在着不灵敏区域，该区域涉及范围很小且靠近绕组入波端的可能性较大。

What we need is a waveform-less voltage, otherwise we'd hear the twice mains frequency waveform.

但我们需要的是没有波形的电压，否则我们会听到交流电源频率两倍的声波，以及大量失真。

Once this interface control IC receives the square waveform signals, the cursor can move with different speeds depending on the different frequencies of square waveform, and then we can achieve the purpose of applying the EOG signals resulted from eye movements to control the mechanical mouse.

因此当滑鼠的介面IC接收到方波讯号时，便依频率的不同做游标移动速度的计算，达到以眼球的运动来控制滑鼠移动的目的。

The purpose of this research is to measure the different EOG (Electro-Oculography, EOG) signals resulted from eye movements. The measured voltages will be transmitted to VCO (Voltage Controled Oscilloator, VCO), and then VCO will transfer the different voltages to different frequencies of square waveform signals. The square waveform signals can replace the pulse trains generated by circle disk encoder, as the input signal of infra red sensor in the mechanical mouse.

本论文主要研究目的，乃是应用眼电图法(Electro-Oculography， EOG)来量测眼球运动所产生的电压讯号，以EOG方式量测到的电压，再经由电压控制震荡器(Voltage Controled Oscilloator，VCO)转换成不同频率的方波，VCO并将方波讯号传送给滑鼠的红外线感应器，以替代轨迹球滚动时其带动圆盘编码器所产生的脉波。

In addition, an experimental system using C language is established, including modules such as representation of waveform polynomial, decision of path senstization, delay computing, clocking based on single-period sensitization, clocking based on multi-period sensitization, test generation considering noise and transformation from bit-level waveform polynomial to word-level polynomial model. They respectively used to test models and techniques proposed in this paper.

另外，：基于C语言本人设计开发了一个实验软件系统，该系统包括波形多J一贞式表示模块、敏化通路判定模块、延时计算模块、单周期敏化的最小时钟周期精确确定模块、多周期敏化的最小时钟周期确定方法模块、考虑噪声的测试生成模块和位级波形多项式描述转化成字级多项式描述模块，分别用于对本文各章中提出的自动化设计的模型和方法进行实验验证。

The active wave seimic prospecting is used to detect the waveform, spectra and wavespeed of the site earth conditions, while the natural seismism is motoring those of waveform and spectra only.

主动波震测法用於侦测现地之波形、频谱、地层波速之变化，天然微震则监测现地之波形、频谱之变化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。