什么是数字控制？
接口是数字控制器与伺服驱动器间的串行实时通信总线。
SERCOS (SErial Real-time Communication System) is the serial real-time communication fieldbus between digital controller and servo-driver.
相反，我们自己的生活是由数字控制的。
步进电机是一种数字控制电机，它将脉冲信号转变成角位移，电机的转速由脉冲信号频率决定。
Stepper motor is a motor controlled by digital signal, which converts pulse signal into Angle displacement. The wheeling speed is controlled by the frequency of pulse signal.
如何方便、可靠地构成通讯网络是实施分布式计算机数字控制(D NC)系统的关键。
Forming the communication network easily and reliably is the key to the implementation of the distributed numerical control (DNC) system.
自动测试系统的测试目标是测试数字控制系统的各项控制指标。
The automatic testing system is meant to test the control indexes of the control system.
数字控制是按照含有机床(刀具)运动信息程序所指定的顺序自动执行操作的加工过程。
Numerical Control (nc) is any machining process in which the operations are executed automatically in sequences as specified by the program that contains the information for the tool movements.
合理选择采样频率是设计实时数字控制系统遇到的实际问题。
How to select sampling frequency reasonably is an actual problem in designing the real time digital control system.
定时电路一般由电源模块、面板电路和定时板组成，是功率源中的数字控制部分。
Timing circuit is usually made up of power supply unit, panel circuit and timing board, it is the digital control part of power source.
步进电机是一种进行精确步进运动的机电执行元件，它广泛地用于工业机械的数字控制。
The stepping motor is a precision electromechanical incremental actuator. It widely USES the digital approach for control of industrial machines.
数据采集是分布式数字控制(dnc)系统的一个重要功能。
II Data acquisition is an important function of Distributed Numerical Control (DNC) systems.
本文是在为某港的集装箱装卸桥的电控系统进行技术改造的工程项目的基础上，对集装箱装卸桥的全数字控制系统进行了比较全面的分析和研究。
This paper analyses and researches full-digital control system of container loading bridge, based on the electric-control system technology transform item of container loading bridge for a harbor.
直接数字控制器(DDC)是楼宇自动化系统(BAS)的基本控制单元。
Direct digital controller (DDC) is the basic control unit of building automation system (bas).
在计算机直接数字控制系统中，PID控制器是通过计算机PID控制算法程序实现的。
In the direct numerical control system of the computer, PID controller is realized by the PID controlling algorithm procedure.
所设计的芯片是32个输入32个输出的交叉点开关阵列，每一个输出都能连接任何一路输入，采用串行数字控制方式。
The chip is a crosspoint array with 32 outputs, each of which can be connected to any one of 32 inputs. The chip is programmed in serial mode.
在电动机的数字控制系统中，一般采用的是PID控制，但由于PID控制有其一定的局限性，在有些场合中难以获得满意的控制效果。
PID control is often adopted in the digital control system of motor. But PID control has some scarcity, good control effects have been obtained difficultly in some instances.
UPS逆变器的数字控制是实现全数字控制ups的关键。
Digital control for UPS inverter is a key point in full digital controlled UPS.
板料零件数控渐进成形工艺是一种通过数字控制设备，采用预先编制好的控制程序逐点成形板料零件的柔性加工工艺。
Nc incremental sheet parts forming process is a flexible process which is to form the sheet point by point on nc forming machine according to the prepared program.
本课题来源于横向课题，是为贵州南华仪器厂的NH4602可程控示波器校准仪升级数字控制部分电路以及相应的监控软件。
The project is to upgrade the digital circuit and monitor software for NH4602-the programmable time and amplitude set test model developed by our lab several years ago.
又因为是试验台控制系统，其本质是为了进行伺服缸的试验，所以我们针对该系统应用了多种控制策略，其中计算机控制系统的数字控制器设计是本文研究的重点内容。
Because of the essence of this control system is to complete servo cylinder test, we adopted many control strategies, and the design of digital controller of computer is the main research object.
结合本系统是计算机控制的特点，利用模拟设计方法设计了本控制系统的数字控制器。
Our system is computer system, so we design the digital controller using analog design method.
从全数字控制的角度对脉冲焊机进行研究以提高焊机控制性能，进而进一步提高焊接工艺性能是焊接领域中的重要任务之一。
It is important to further improve PMIG welding control performance and corresponding process results by full digital control design in welding machine research.
本文的研究目标是设计具有产品化、商业化价值的混合有源滤波器的数字控制器。
This thesis's main object is to design a digital controller of HAPF which can be commercialized and made into product.
选择合适的数字控制器和采样周期是设计数字控制系统的关键。
It is the key to designing a digital control system to select suitable digital controller and sampling period.
了解数控机床的概念，所谓数字控制是按照含有机床(刀具)运动信息程序所指定的顺序自动执行操作的过程。
Numerical Control (nc) is any machining process in which the operations are executed automatically in sequences as specified by the program that contains the information for the tool movement.
现场总线技术是当今世界各国关注的热点课题，以现场总线为基础的全数字控制系统是21世纪自动化控制系统的主流。
Field-bus technology is hot spot talked about by all over world. And fully digital control system based on field bus is the mainstream of automatic-control system in the 21st century.
将直接数字控制器应用于闸门控制，实现闸门开度的数字化控制是顺应水利自动化的号召提出的。
The scheme of DDC (Direct Digital Control) designed in gate controlling so as to realize digital control is put forward to keep up with the calling of hydraulic automation.
激光快速成型技术是集计算机辅助设计、计算机辅助制造、计算机数字控制以及精密伺服驱动和新材料等先进技术于一体的产品研制、开发技术。
Rapid prototyping is a technology for product development, which integrates different advanced technologies including CAD, CAM, CNC, accurate servo system and new materials, etc.
激光快速成型技术是集计算机辅助设计、计算机辅助制造、计算机数字控制以及精密伺服驱动和新材料等先进技术于一体的产品研制、开发技术。
Rapid prototyping is a technology for product development, which integrates different advanced technologies including CAD, CAM, CNC, accurate servo system and new materials, etc.
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