分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
在数控机床测控系统中，反馈位移和速度的检测元件通常易发生故障。
The speed and place of the feedback have been breakdown frequently while checking components are used in numerically-controlled machine .
建议低速磁浮车辆采用磁铁横向错位布置和横向位移与速度反馈主动导向方式。
It is suggested that the low-speed maglev vehicle should adopt the lateral-offset magnets and the active guidance mode using the lateral displacement and velocity feedback.
粘弹性阻尼器采用开尔文模型，将其对结构的作用看作是位移和速度的反馈控制。
The viscoelastic damper was described by the Kelvin model and its action to the platform was regarded as the feedback of displacement and velocity of the response.
由自感知电压引入速度负反馈闭环控制，并由假设模态法将位移按模态展开，求解了悬臂梁结构的动态特性；
The mathematical models based on the assumed modes method and a closed loop velocity feed back control law are developed to describe the flexural vibration dynamic behaviors.
随后，根据速度反馈和位移延时反馈的颤振原理，建立了深孔钻削加工两自由度颤振动力学模型。
Secondly, dynamic model of deep-hole drilling system with the two degrees of freedom are established in the light of principles of machining chatter in cutting processes.
随后，根据速度反馈和位移延时反馈的颤振原理，建立了深孔钻削加工两自由度颤振动力学模型。
Secondly, dynamic model of deep-hole drilling system with the two degrees of freedom are established in the light of principles of machining chatter in cutting processes.
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