介绍了对一进口梳状谐波发生器功能失效样品进行分析的案例。
Abstract: This paper introduces a failure analysis case on a comb(harmonic)generator.
在Nd：YAG强激光光场的作用下，薄膜样品中观察到二次谐波信号，并分析了二次谐波发生的机理。
The optical second harmonic signal was observed using a ND:YAG laser, The mechanism of SHG was discussed.
在研究的基础上搭建了一台容量为150kva的样机，以此样机为平台实现了对电压暂降、谐波发生的控制。
On the basis of the study, a prototype of 150kva capacity has been built, and the control occurred of voltage sag and harmonic have been achieved using this prototype as a platform.
另外，SHG显微镜可以与TPF显微镜结合使用同一个激光源。可由二次谐波发生(SHG)显微镜提供形貌信息。
Additional morphological information can be provided by second-harmonic generation (SHG) microscopy, which can be combined with TPF microscopy using the same laser source.
他们很可能是偶数阶谐波失真的结果-一个系列的标志-没有发生任何的电线放大器的重要程度。
They are probably the result of even order harmonic distortion - a hallmark of the SET - that do not occur to any significant degree in the Densen amplifiers.
故障发生后，对于不同的故障性质，线路首端重合闸安装处的电压谐波含量是不同的。
After faults occur, different kinds of faults have different percentages of voltage harmonic signals which can be measured on busbar.
当第二个音叉被调谐到与第一个音叉调谐音或波形能发生谐波共振的时候这些才会出现。
This occurs only when the second fork is tuned to a resonant harmonic of the first tuning fork's note or waveform.
当系统中存在谐波源时，无功补偿电容器组与系统电路会在某次谐波频率下发生并联谐振。
When harmonic sources exist in power system, parallel resonance occurs due to the interaction between shunt capacitor bank and system inductance.
研究结果发现，组合共振区域内发生两种不同的拟周期运动和组合周期运动，而且第一振型次谐波共振曲线延伸到组合共振区域。
The results obtained show that several motions may occur in the region of combination resonance, including two kinds of quasi-periodic vibrations and combined periodic motion.
为减小谐波不稳定发生的概率，保证直流系统运行的安全、稳定性，对谐波不稳定现象进行深入研究是十分必要的。
For decreasing the probability of harmonic instability and guaranteeing the safety and stability of HVDC's operation, it is necessary to research the harmonic instability deeply.
有限振幅的超声波在固体中传播时会发生波形畸变，伴随着高次谐波的出现。
Wave distortion will occur when finite amplitude ultrasonic waves propagate in elastic solids, resulting in the production of higher order harmonics.
基于电压源逆变器（V S I）的静止无功发生器（SVG）直接应用PWM控制技术，具有结构紧凑、易于控制、谐波含量小以及功率密度大等优点。
VSI-based SVG using PWM technology has some advantages such as compact structure, simple control, little harmonics and high power density.
由于电网中非线性设备的使用日益增多，所产生的高次谐波电流大量注入电力线路中，使得电网电压、电流波形发生畸变。
Since more and more nonlinear equipments have been used in the power supply network, the generated high harmonics current leads to waveform distortion of voltage and current in the supply network.
基于神经网络的非线性映射特性，提出了一种适用于直接电流控制的静止无功发生器检测无功和谐波电流的方法。
Basing on the image character of nonlinearity of neural network, the article introduces a method of detecting reactive and harmonic current which is fit for SVG's control by direct current.
研究了活齿端面谐波齿轮各啮合副齿面修形的原则，得出了波发生器、活齿前后端和端面齿轮齿面的修形高度之间必须满足的关系。
The modification principle of tooth surface is deduced, and it draws the conclusion that the modificative tooth depth of wave producer, end face gear and oscillating teeth have certain relation.
给出用光谱分辨的二次谐波自相关法测量输出脉冲的结果，证实在锁模脉冲中已发生频率调制。
The results of the spectrum-resolved SHG correlation measurements of the mode-locked pulses also are presented, which confirmed the presence of frequency chirping in the pulses.
通过谐波分析计算可以确定系统中各部分电压和电流波形的畸变程度、判断系统是否处于谐波谐振状态以及如何采取措施减小系统谐振发生的可能性。
Harmonic analysis can be used to quantify the distortion in voltage and current waveforms in a power system and to determine the existence and mitigation of resonant conditions.
船舶电力系统的电网谐波污染日益严重，电能质量下降，由谐波引起的各种故障和事故不断发生。
Harmonic pollution in ship electronic power system is becoming more and more serious, power quality comes down and different kinds of fault and accident happen continually.
即使在三相正弦激励的作用下，三相线电流也将发生非正弦畸变，产生谐波电流。
Even if it worked with three-phase sine, three-phase line current would have non-sine aberrance and produce harmonic wave-electricity.
本文首先论述了电能质量问题存在的普遍性和危害性，并对其中突出问题无功补偿和谐波抑制的意义作了分析，从而引出研制三相四线制静止无功发生器的重要性；
Firstly, this paper discusses universality and crisis of power quality problem and analyzes important significance of Var compensating and harmonious restrain which stand out in power system yet;
二次谐波可使谐振腔归一化阻抗发生变化，导致强声发生器频率响应曲线失真；
The second-order harmonic can change the Normalized Impedance of the resonance cavity, and cause the distortion of Frequency Response;
调谐音或波形能发生谐波共振的时候这些才会出现。
The nature of the wave motion in sound can be made clear by considering the tuning fork.
调谐音或波形能发生谐波共振的时候这些才会出现。
The nature of the wave motion in sound can be made clear by considering the tuning fork.
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