Adopting ac servo motor as the driving device, can the dc servo motor and a high precision, high performance as the half closed loop or closed loop control system.
采用交流伺服电机作为驱动器件，可以和直流伺服电机一样构成高精度，高性能的半闭环或闭环控制系统。
A kind of the pulse control mode, the drive and motor closed loop, but not to the numerical control system, the feedback device, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
For digitized AC servo system, it needs software to support it's closed-loop control. Its control quality is decided by the program of control computation directly.
数字化的交流伺服系统是靠软件完成控制计算来支持闭环控制的，它的控制计算程序直接决定了系统的控制质量。
Adopting ac servo motor as a drive device, can and dc servo motor as a high precision, high performance and a half closed loop or closed loop control system.
采用交流伺服电机作为驱动器件，可以和直流伺服电机一样构成高精度，高性能的半闭环或闭环控制系统。
A kind of the use of impulsive control mode, the drive and motor closed loop, but not feedback to the numerical control system, this drive, in a sense, can open loop control called the servo control.
一种采用脉冲控制方式，此种驱动器与电机闭环，但不反馈到数控系统，这种驱动器在某种程度上可称为开环控制的伺服控制。
A new equipment for simulated the performance of propeller load is introduced in this paper, it's an all digital DC torque servo system using torque closed loop and current closed loop control.
介绍一种新型的螺旋桨特性负载模拟装置，它是全数字控制的直流转矩伺服系统，采用转矩电流双闭环控制方式。
The system proposes the application of a closed loop position servo control and sets up a model and algorithm of er ror tracing and digital feedback.
系统提出采用闭环位置伺服控制，建立跟随误差和数字反馈的模型和算法。
Secondly, servo control tache is introduced briefly, and how to realize a closed-loop position control system which USES stepping motor as driver component is presented.
其次，对于伺服控制环节，实现了以步进电机为驱动元件的闭环位置控制系统。
A dynamic simulation tool, SIMULINK software package in MATLAB, is taken as the development tool, and applied in the dynamic response computation of the hydraulic servo closed-loop control system.
以MATLAB中动态仿真工具SIMULINK软件包为开发工具，将其应用于该液压伺服闭环控制系统的动态响应计算中，针对上述两种闭环控制系统，给出了考虑干扰量情况下的SIMULINK仿真方法。
The rotation and location is under control of servo motor, the system adopts closed-loop control, so high precision for location, without repeating location accumulation error.
转盘的转动及定位由伺服电机控制，本系统采用全闭环控制，定位精度高，无重复定位累积误差。
Simulation results indicate that the clutch engaging speed can be accurately controlled by using DC servo motor dual closed loop control system. The start quality of Vehicle was improved.
结果表明：直流伺服电机驱动离合器，能很好地控制离合器的结合速度，提高车辆起步品质。
Simulation results indicate that the clutch engaging speed can be accurately controlled by using DC servo motor dual closed loop control system. The start quality of Vehicle was improved.
结果表明：直流伺服电机驱动离合器，能很好地控制离合器的结合速度，提高车辆起步品质。
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