谐振

Taking the development platform of HVDC power transmission for example, the calculation result of impedance-frequency characteristic of traditional line commutated converter and that of FCC are compared. Simulation results show that the impact of impedance-frequency characteristic of converter on the resonance frequency of AC system is not negligible, and FCC can enhance the strength of AC system in a certain extent, improve system stability and effectively reduce AC equivalent impedance under resonance frequency, thus the harmonic instability of HVDC power transmission system can be avoided.

以直流输电开发平台为例，对传统电网换相换流器(line commutated converter，LCC)与FCC的阻抗频率特性计算结果进行对比，仿真结果表明换流器的阻抗频率特性对交流系统的谐振频率有着不可忽略的作用，FCC在一定程度上提高了交流系统强度，改善了系统稳定性，有效降低了系统谐振频率下的交流等值阻抗，从而更好避免直流输电系统谐波不稳定现象的发生。

One two-steps variable resonance pipe-length of induction system has been excogitated and the control strategy was put forward. Using this system, the max.

用长进气管则谐振转速低，可提高低速范围的充气效率，从而提高最大转矩；用短进气管则谐振转速高，可提高高速范围内的充气效率，从而提高最大功率。

To use a crystal unit as an oscillator, its oscillated frequency is required to be stable against temperature variations.

石英晶体作为谐振器在使用时，要求其谐振频率在温度发生变化时保持稳定。

With this modeling, we can clearly get to know the innate character of accoustic resonance and also know how to elimate the accoustic resonance whiling designing the HID electronic ballast.

通过这一模型的建立，使我们对高强度气体放电灯声谐振的本质有一个清晰的认识，也为在电子镇流器设计时如何消除声谐振现象指明方向。

The mechanical properties and the electrical properties of the cantilever, such as spring constant, resonant frequency, mechanical quality factor, piezoelectric output and the noise level, determine the resolution of a AFM when piezoelectric cantilever is used as the force sensor.

在作为原子力显微镜的力传感器使用时，压电探针的机械特性，如弹性常数、谐振频率、谐振质量因子，以及电子特性如压电输出、噪声水平等决定了原子力显微镜的分辨率，而对于带有针尖和三角形前端的PZT压电探针，这些特性迄今未得到系统研究。

Mechanical transmision devices of any control system have some elastics This Ki- nd of mechanical resonant frequency produced by the elasticity is usually higher and it's far away from the mediumfrequency domain sensitive to dynamic characteristics, so the resonant effecr on the system can be neglected.

任何控制系统的机械传动装置都有一定弹性。通常，这种弹性形变所产生的机械谐振频率&较高&，远离对系统动态品质敏感的中频段，谐振对系统的影响可以忽略。

Based on the 1D single electron theory of the interaction between the electron and microwave, the generation and the oscillation of microwave in the foldaway concentric cylinders resonant cavity are analyzed.

提出一种高功率微波折叠式谐振腔径向速调管振荡器，用电子与电磁场相互作用的一维单电子模型分析了这种折叠式谐振腔径向速调管振荡器的特点。

Effective separation of magnetron mode is one of the important problems for stable operation and improvement of efficiency. In this paper, based on field theory and equivalent circuit approaches, characteristics of electromagnetic field and dispersion in several resonance systems of magnetrons are systematically analyzed.

谐振模式的有效分隔是保证磁控管稳定工作、提高效率的关键问题之一，本文应用场论和等效电路的方法，系统地分析了几种磁控管谐振系统中的电磁场分布和色散特性，论证了模式分隔特性对稳定磁控管工作及提高效率的重要作用。

The diameter and length of the organ-pipe resonator are the important factors affecting the flow os...

风琴管谐振腔的直径和长度是影响谐振腔流体共振的重要因素，需通过试验确定。

No remarkable resonance peak, limiting factor in laser diodes, is observed during this modification in transistor laser structure.

谐振峰是限制激光二极管性能的因素之一，而在这种晶体管激光器结构中，没有观察到明显的谐振峰。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。