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- Beat Frequency Oscillation 拍频振荡
- beat frequency oscillator 差频振荡器,拍频振荡器
- In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system. 在音响设备中出现的振荡频率极低的低频振荡,常因放大系统的正反馈回路引起。
- Ciliary beat frequency measurement of cultured human nasal epithelial cellsSONG Xiao-hong, et al. 体外培养的人鼻腔黏膜纤毛摆动频率的测量。
- A combined power system adaptive stabilized apparatus GPSS is designed to suppress low frequency oscillation and to improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡;提高电力系统稳定性;设计了一种组合电力系统自适应稳定器GPSS(以下简称自适应稳定器GPSS).
- The influence of inertia constant (H_D) of induction motor on low frequency oscillation (LFO) was studied. 研究感应电动机惯性时间常数HD对电力系统低频振荡(LFO)的影响.
- VFO? Variable Frequency Oscillator? 可变频率振荡器,变频振荡器?
- VFO? Voice Frequency Oscillator? 音频振荡器?
- Ciliary beat frequency of different cilia is equal on the same cell, it is also equal from uncinate process and inferior turbinate. 同一来源的体外培养的钩突和下鼻甲的纤毛摆动频率是相同的。
- One is the low bus voltage at Omei substation;and the other is the low frequency oscillation problem. 目前台电系统中存在两个主要问题:一个是峨眉汇流排电压过低的问题,另一个是潜藏在区域间的低频振荡问题。
- Brillouin enhanced four wave mixing, whose interference beat frequency drives an acoustic field, can improve the SBS phase conjugation fidelity. 采用四波混频加强SBS的方法,其相干拍频驱动声子场,能提高SBS相位共轭保真度。
- The validity study of Prony analysis for low frequency oscillation in power system.Electric Power,2001,11(34):38-41. Prony算法分析低频振荡的有效性研究.;中国电力;2001;11(34):38-41
- A combination power system hybrid adaptive stabilizer GPSS is designed to suppress low frequency oscillation and to improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡,提高电力系统稳定性,设计了一种组合电力系统混合自适应稳定器(GPSS)。
- A combination power system hybrid adaptive stabilizer GPSS is designed to suppress low frequency oscillation andto improve power system stability. 为了抑制电力系统因负阻尼而产生的低频振荡,提高电力系统稳定性,设计了一种组合电力系统混合自适应稳定器(GPSS)。
- The dynamical equations of rigid flexible coupling multibody systems have characters of stiffness and high frequency oscillation. 刚柔耦合多体机械系统动力学微分方程组具有刚性和高频振荡的特点。
- The validity study of Prony analysis for low frequency oscillation in power system [J].Electric Power, 2001, 34(11): 38-41. Prony算法分析低频振荡的有效性研究[J].;中国电力;2001;34(11):38-41
- My heart beat thick in the course of the interview. 在面试过程中我的心跳得厉害。
- The validity study of prony analysis for low frequency oscillation in power system[J].Electric Power,2001,11(34):38-41(in Chinese). Prony算法分析低频振荡的有效性研究[J].;中国电力;2001;11(34):38-41
- An acousto-optic deflector(AOD)driven by a beat frequency signal generated two overlap gratings inside the acousto-optic(AO)crystal and diffracted the incident laser beam into two first-order beams. 该系统利用拍频信号驱动声光偏转器,在声光晶体中形成两个重叠的光栅,光源发出的激光以布拉格角入射,形成两束一级衍射光,经透镜聚焦形成光强按正弦规律分布的结构光条纹。
- Finally, we try to find out the reason of low frequency oscillation of a CMSDA ( Cascode Multi-Stage Distributed Amplifier ) and the way to solve this problem. 再来,我们利用一个设计失败的多级串叠分布式放大器来讨论低频震荡的产生原因与解决方法。