A method for analyzing electrical excitation mode of electromagnetic measurement while drilling (EM-MWD) is proposed.
本文提出一种电磁随钻测量的电激励模式的分析方法。
The rotor is aligned to a certain position specified in DC excitation mode for the period of (a), during which the IP pin voltage decreases from VREF to VREF/2 level.
在IP引脚电压从VREF降低至 VREF / 2期间,在阶段(a)转子在直流励磁模式下对准某一指定的位置。
When the switched reluctance motors operate in two phase excitation mode, the phase flux linkage will be reduced due to the high magnetic saturation in the stator and the rotor yoke.
开关磁阻电动机在两相励磁的工作条件下,定转子轭部磁场高度饱和使每相磁链有所减小。
Finally, the collapse and revival of collective excitation induced by mode coupling is also demonstrated.
最后,展示了基于模耦合的集体振荡的塌缩和恢复现象。
Two main problems in designing the main circuit of switching mode excitation controller are peek voltage and over current of switching device.
开关式励磁调节器主回路设计中需要考虑的两个主要问题是开关器件的尖峰电压和冲击电流。
The main subject of this dissertation is the research on the control mode of excitation system, which is a subsection of Sanxia Electromechanical Equipment Research.
本论文是基于“三峡机电设备”课题的子课题“励磁系统控制方式的研究”。
We find that for our toroidal current antenna, there may exist two ways of excitation, i. e. direct excitation and excitation through the electrostatic mode conversion process.
对纵环电流天线,可能存在静电模转换激发和直接激发这两种离子伯恩斯·坦波激发方式共存的情况。
The Instantaneous Optimal Control(IOC) algorithm suitability for the vibration control analysis of bridges under uniform earthquake excitation is proposed based on the subspace mode analysis method.
采用子空间模态分析法建立了适合一致地震激励下桥梁振动控制分析的瞬时最优控制算法。
In case of symmetrical geometry of wire antennas or arrays with any voltage excitation, generalized even-odd mode expansion method can be used.
对于具有对称性的线天线或其阵列,不论激励电压如何,均可采用广义奇偶模展开。
The mode response of a steel truss bridge was analyzed by ANSYS and its seismic responses under transverse and longitudinal excitation were calculated using time-history analysis function.
通过利用ANSYS对某钢桁架桥进行了模态分析,并用时程分析法进行了在横桥向和竖桥向激励下的地震响应分析,得到了在关键截面的位移和杆件内力响应峰值。
This assembly uses mode of "first absorption then spectroscope , excitation source of deuterium hollow cathode lamp or broadening line hollow cathode lamp."
采用“先吸收后分光”方式,氘空心阴极灯或变宽谱线空心阴极灯作激发光源。
Selecting the appropriate excitation frequency can well inhibit the conversion mode amplitude.
适当地选取激发频率,能很好地抑制转换模态幅值。
This article gives the elementary analysis on why does high-order mode resonance arise and how to control it, and proposes several practical methods controlling high-order mode excitation.
对高功率电控铁氧体功率分配器产生高次模谐振的原因进行了初步的唯象分析,并提出了几种有效的高次模谐振控制方法。
The chaotic motion of a pipe single mode system of the fixed supported at two ends under base excitation is actively controlled by introducing the feedback of notch filter.
对于两端固定输流管道在基础简谐激励下的单模态系统,利用凹槽滤波器对系统的混沌运动进行了控制。
The results show that the present method can identify the mode shape accurately and complement the use of PRCE under unknown excitation condition.
结果表明,采用该方法能够有效地识别出模态振型,从而弥补了复指数法在未知激励下进行模态分析的不足。
It is found that the system is subjected to the low-frequency excitation and occurs random vibration in the non-linear complex-mode form.
揭示了系统所受的是低频激励,以非线性复模态的形式作随机振动。
In Chapter 3, a theory of characteristic modes of conducting bodies is introduced and a method of characteristic mode excitation has been studied according to modal excitation factor.
第三章介绍了导体的特征模理论,并探索了一种根据激励因子来激励特征模的方法。
The middle part of the fruit surface was suggested to be used as the location of the force excitation while estimating the fruit firmness by the resonant frequency of the first-type mode.
当采用第一纵向振型的共振频率来估测水果硬度时,激励点应置于水果外表面的中部;
Mode transformation is determined by fixing the distance between the excitation and detection position, as well as by scanning the samples along the normal direction of the wedge tip.
通过固定激发源与探测源的位置,并沿垂直于楔尖方向扫描样品,可以观察到楔形波的模态转变过程。
Mode transformation is determined by fixing the distance between the excitation and detection position, as well as by scanning the samples along the normal direction of the wedge tip.
通过固定激发源与探测源的位置,并沿垂直于楔尖方向扫描样品,可以观察到楔形波的模态转变过程。
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