In order to improve the power parameter further, the intermediate frequency inversion of an electric voltage power type series resonance and frequency trace technique are adopted. 为使系统的功率因数较高,采用电压源型负载串联谐振中频逆变器和频率跟踪技术。
The reported malfunctions differ from those caused by the strong electric and magnetic fields in magnetic resonance imaging ( MRI), the FDA said. FDA说,这些报道的装置功能失常有别于磁共振成像(MRI)中因强电、磁场引起的功能失常。
The imaging logging instruments include the electric imaging logging instrument and acoustic imaging logging instrument, as well as the array nuclear imaging logging instrument and nuclear magenetic resonance imaging logging instrument which are under development. 成像测井仪有电成像测井仪和声成像测井仪,正在研究中的还有阵列核成像测井仪和磁共振成像测井仪。
Laser-Induced electric breakdown in alkali-halide crystals and resonance time quantization 激光诱导碱金属卤化物晶体电击穿与共振时间量子化
This article analysed the characteristic of harmonic impedance in network components of electric transmission line and capacitor, discussed the resonance and harmonic current amplification, which may be caused by capacitor. 分析了输电线和电容器的谐波阻抗特性,并对电容器有可能造成的谐振和谐波电流放大进行了分析。
And we also get the fundamental resonant frequency of piezoelectric slip simply supported beams with the variation in electric field The relations between predicted resonance amplitude of max deflections for the piezoelectric actuators and the electric field. 同时得到了压电可移简支梁的共振频率、固有频率和电场频率三者之间的变化关系,压电执行器谐振幅度与作用电场强度的关系。
Introduces the produce mechanism and source of resonance wave in electric power network, especially points out the harm of resonance wave, puts forward some measures of technique and management to reduce the influence of resonance wave. 介绍电力网谐波的产生机理及产生谐波的谐波发源地,特别指出谐波对电力系统所产生的危害,提出减小谐波影响的技术措施和管理措施。
Conclusion The potassium currents in OHC play an important role in electric resonance of OHC. 结论K+电流在OHC的电谐振中非常重要。
The heating of a two ion-component plasma in a toroidal device through the damping of the electric field of fast wave by cyclotron resonance with minority ions is considered. 本文考虑环形系统双成份等离子体中快波电场与少数成份离子共振时,快波经回旋阻尼以加热等离子体。
The contour electric field distribution in the microwave resonance cavity and WC-Co when heating it was analyzed and discussed with the ANSYS software. 运用ANSYS软件进行数值模拟,分析和讨论了微波加热柱状WC-Co时谐振腔和介质内电场分布云图。
Compared with parallel plate static electric field method of ion extraction, RF resonance method increases the ion flux and shortens the extraction time. 与离子引出方法中传统的平行板电场相比,RF共振法使得引出的离子流加大,离子引出时间显著缩短。
Capacitor's capacity can be measured by resistance value, volt top-top value between capacitor, the biggest capacitor's electric current value and the smallest volt changing-ratio, phase difference or LC resonance frequency. 其中只要测电容和电阻两端峰值电压、测流过电容的最大电流、电容电压的变化率、测电容上电流和电压的相位差或测LC谐振频率都可以得到电容的容量。
Studies on electric conductivity and electron spin resonance for iodine doped polyacetylene 碘掺杂聚乙炔电子自旋共振及导电性的研究
The surface enhancement of Raman scattering is ascribed to the enhancements of the electric field in the cavity by the coupling of the surface plasmon resonance and light and electromagnetic energy density due to the focusing effect of the cavity structure. 拉曼散射的表面增强被归因于纳米球腔阵列的协同表面等离子体共振与光的耦合导致的电磁场增强以及纳米球腔结构对电磁场的聚焦效应而使球腔内电磁场能量密度的增大。
The torsional vibration of the tangentially polarized piezoelectric ceramic slender pipe whose electric terminals are loaded is analyzed, the electromechanical equivalent circuit and resonance frequency equation are obtained. 分析了接电负载压电圆管的扭转振动特性,推出了其机电等效电路和共振频率方程。
At the interior resonance frequencies, Inagaki mode method, based on electric field integral equation, is used to filter out resonance modes and obtain right parameters. 这种方法基于电场积分方程,利用Inagaki模性质有效地去除了谐振模式,获得内谐振条件下正确的导体散射特性。
It was found the surface electric field could promote the producing of hydroxyl free radical of TiO2 by electron-spin resonance ( ESR). 电气石电场可以促进纳米TiO2的光催化,增加羟基自由基的产生量。
When the electric resonance frequency approximatively adds one of the inherent surge frequency of synchronous generator axis. The coupling surge of electric-machine system will occur, the serious accident is the synchronous generator axis will be twist off and the grave economy loss will be result in. 当线路电气谐振频率与同步电机的轴系某一固有振荡频率近似互补于电网工频时,将导致机电系统的耦合振荡,严重时会造成同步发电机大轴的扭断,使电力系统造成重大的经济损失。
Magnetic resonance electric energy transmission is sensitive to the direction of transmission. Propose and design the resonance coil with three dimensional structures and the direction independence of receiving end is improved efficiently. 磁耦合谐振电能传输对传输方向较敏感,提出并设计了三维结构的谐振线圈,有效地提高了接收端的方向无关性。
The bandwidth of negative index, magnetic resonance, and electric resonance could be tuned by the aperture length. 并且改变长条形孔的长度可以调制负折射的带宽、磁响应和电响应。
The wireless energy transmission system is also divided into the launcher and the receiver, the launcher translates the electric energy into electromagnetic energy by resonance, the receiver couples the electromagnetic field by the receiving coil and converts it into electric energy. 4. 机器人的无线能量传输系统分为无线能量传输发射端和无线能量传输接收端,发射端通过谐振将电能转变为电磁能,接收端通过接收线圈耦合发射端的电磁场并转变为电能。
Traveling-wave thermoacoustic electric generator is simulated based on the linear thermoacoustic theory. The effects of load resistance, circuit resonance and pressure amplitude on the output characteristics of the system are analysed. 基于线性热声理论,对行波热声发电系统进行整机建模,分析了外接负载、电路谐振和四通处压力振幅对行波热声发电系统输出特性的影响,并搭建实验台进行了验证。
The parameter retrieval results, surface current distribution, analysis of critical parameter and transmission experiment in PPW system are also utilized to distinguish the electric and magnetic response for different resonance regime. 4. 通过参数提取,表面电流分布,关键参数研究以及平板波导中的能量传输实验的结果来区分不同频段谐振处的电响应和磁响应。
PT resonance occurs in the neutral point ungrounded system of electric distribution network frequently. The root cause of PT resonance is the nonlinear characteristics of the electromagnetic voltage transformer. PT谐振大多数发生在中性点不直接接地的配电网中,由电磁式电压互感器饱和引起,电磁式电压互感器的非线性特性是铁磁谐振产生的根源。