The exponential type horn can suppress high harmonic wave and low harmonic wave.
指数型号筒具有抑制高低次谐波的作用；
Output current is sine wave and does not include unnecessary high harmonic wave.
输出电流为正弦波，不包括多余的高次谐波。
Moiré fringe; phase-difference filtering; scanning reticle; high harmonic generation;
莫尔条纹；相位差滤波； 指示光栅；高次谐波；
The paper analyzes the harm of high harmonic and provides the restraint necessity and measure.
摘 要分析了高次谐波在诸多方面产生的危害，提出抑制高次谐波的必要性及具体措施。
It produces serial power quality problems such as reactive power excessive, negative exceeding, containing high harmonic.
由此产生诸如无功成分多、负序突出、谐波含量高等一系列电能质量问题。
The result of simulation shows that the circuit has the soft switching characters and its high harmonic has been decreasing.
结果表明该电路在具备了软开关特性的同时，还可以有效地降低高次谐波含量。
This machine adopts the world's advanced high-Q square vibration hair with hair vibration frequency stability, output power of high harmonic less advantages.
本机采用世界上先进的方型高q值发振器，具有发振频率稳定，输出功率高，谐波量少的优点。
Optical high harmonic generation is extending frequency comb techniques into the extreme ultraviolet, opening a new spectral territory to precision laser spectroscopy.
光纤产生高次谐波频率梳技术扩展到极端的紫外线，打开一个新的精密激光光谱的光谱领土。
By testing the harmonic content of colour TV set, the paper analyses the reasons for the too high harmonic content, verifies the measures for reducing the harmonic content.
通过对彩色电视机谐波含量的测试，分析了谐波产生的原因。推导出了谐波含量与功率因数的关系，并提出了降低谐波含量的措施。
Though PWM modulation technology has already been used in power converter abroad, it becomes a main reason which can produces EMI because PWM modulation signal contains abundant high harmonic.
PWM调制技术已广泛应用于电力电子技术中，但PWM调制信号含有大量的高次谐波，成为产生emi的主要原因之一。
The magnetic sensor has characteristics of high sensitivity and quick response due to the amorphous wires excited directly by sharp pulse train current containing amount of harmonic signals.
采用含有丰富谐波分量的窄脉冲电流作为励磁信号对非晶丝直接励磁，使传感器具有灵敏度高、响应快的优点。
Harmonic resonance often manifests as high voltages in a power system.
谐波谐振在电力系统中经常表现为高电压。
Experiment results showed that the correction device of power factor could realize high power factor, low harmonic distortion and low ripple of output voltage.
通过实验结果表明，单级功率因数校正装置可以实现较高的功率因数、较低的总谐波畸变，而且输出电压纹波小。
In this paper has analysed high levels of harmonic currents and low Power factor of electronic ballast by circuit study.
通过电路分析对电子镇流器存在的电源电流谐波高和功率因数低等问题。
The harm of the high degree harmonic wave in power system was introduced and the selection of prevention and the measure of controlling the harmonic interference were put forward.
本文简要介绍电力系统中高次谐波的危害，以及选择的防治、抑制谐波干扰的措施。
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。
It can achieve a fixed output of DC voltage in the universal input range of ac 80 ~ 265 V. It owns the advantages of high efficiency, low total harmonic distortion, PF near to 1.
该方案能在80 ~ 265V宽输入电压范围内得到稳定直流电压输出，具有效率高、总谐波畸变率低、功率因数接近为1等特点。
High frequency harmonic in electric power network can pollute the network, control high frequency harmonic is an important research problem in electrical system function.
电网中的高次谐波对电网有污染，抑制高次谐波是电力系统运行中的重要研究课题。
Experiment result showed, the topology can make the device get to high Power Factor (PF), low Total Harmonic Distortion (THD) of input current, low ripple of output voltage, and high efficiency.
实验结果表明，应用该电路拓扑的实验装置，其功率因数较高，输入电流的总谐波畸变较低，输出电压纹波小，而且整个装置的效率也比较高。
The results showed that the warming rate of the simple harmonic field was high but uneven, leading to a high perch'ltage of cell death.
结果表明：谐振场加温迅速但极不均匀，造成细胞大量死亡。
So, the windows and interpolated FFT is developed, and the harmonic expurgation according to amplitude is put forward for high order harmonic parameters analysis in this paper.
作者采用加窗插值FFT，并提出逐幅谐波消去法，以便能精确地分析高次谐波。
The experiment results indicate the system has the characteristics of high power factor and low harmonic current.
实验结果表明，该系统具有输出功率因数高，对电网谐波污染小等优点。
In a practical circuit, the series APF can compensate a high capacity voltage harmonic source load or several low capacity voltage harmonic source loads.
在实际应用中，串联型APF既能对单个大容量电压型谐波源负载进行补偿，也能对多个小容量电压型谐波源负载进行集中补偿。
On the basis of active power filter linear shunt transformer harmonic impedance control, a novel principle for high voltage alternate power distribution systems is proposed.
针对高压交流配电系统，提出一种基于线性并联变压器谐波阻抗控制的并联型有源电力滤波器新原理。
This paper brief introduces the mechanism, damage and restraining method of high order harmonic.
本文简单介绍了高次谐波产生的机理、危害及有效抑制干扰的方法。
The most attractive one is high order harmonic generation (HHG), which can be used as a source of extreme ultraviolet (XUV) and soft X-ray lasers.
其中高阶谐振的产生，由于可以作为产生真空远紫外线和软X射线的可能途径，受到人们的极大关注。
An active power filter based on harmonic current compensation of the transformer is proposed for high voltage large capacity application.
提出一种新型的基于变压器谐波电流补偿的高压大容量有源电力滤波器。
A new method is proposed, based on the instantaneous reactive power theory, to detect high frequency harmonic current and instantaneous reactive current applying high pass filter simultaneously.
基于瞬时无功功率理论提出了一种应用高通滤波器同时检测高次谐波电流和无功电流的新方法。
As an effective way of eliminating high frequency harmonic, active Power Factor Correction (PFC) technology has been deeply researched and has broad application.
有源功率因数校正技术(PFC)作为一种有效的谐波抑制方法，得到了广泛而深入地研究与应用。
As an effective way of eliminating high frequency harmonic, active Power Factor Correction (PFC) technology has been deeply researched and has broad application.
有源功率因数校正技术(PFC)作为一种有效的谐波抑制方法，得到了广泛而深入地研究与应用。
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