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- double frequency oscillation 倍频振荡
- 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。
- 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?
- 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。
- 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 double frequency drape bugle shape antenna includes a guiding tube and a bugle section. 一种双频皱波状喇叭天线，包括一导管及一喇叭部；
- 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)。
- The OH - transmissive spectra,photo damage resistance,photo conductivities and the double frequency properties have been measured. 测试了晶体的红外透射光谱、抗光损伤能力、光电导和倍频性能。
- 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 paper discusses how to designand test the micro self - adjustable controller with double frequency laser intervener and theory of super stability based onPOPOV. 现主要讨论一种采用双频激光干涉仪作为位置反馈元件的基于POPOV超稳定性理论的自适应微动控制器的设计和实验过程。
- 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
- 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
- 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。
- Temperature Modeling of Intracavity Doubling Frequency Nonlinear Crystal[J]. 引用该论文 李隆;史彭;陈浩伟;贾森;白晋涛.
- The lower ploidy materials,the higher chromosome doubling frequency. 倍性低的材料加倍率较高。
- Thus it realized effective extraction of all parameters of LFO signals and put forward a new explanation of the mechanism of very low frequency oscillation. 其次运用该文推导的阻尼比计算公式提取各振荡模态分量阻尼比，从而实现低频振荡模态参数的有效提取。
