Methods of analyzing the dynamic performance of automatic control system can include time domain analysis, frequency domain analysis and stability.
自动控制系统的动态性能的分析方法包括时域分析法，频域分析法，及稳定性判据。
The phase- locked loop is one kind of control system which is able to achieve phase automatic lock, to compose frequency and to trace demodulation system.
锁相环路是一种能实现相位自动锁定的控制系统，主要用于频率合成及跟踪解调系统。
The phase-locked system is a closed loop automatic control system that can follow the frequency and phase of the input signals.
锁相系统是一个能够跟踪输入信号频率和相位的闭环自动控制系统。
Frequency control Technology, which can be used as automatic air exchanging and conditioning system in flower cultivation greenhouse, has high reliability and excellent control performance.
变频调速技术以其高可靠性及优良的控制性能，可以作为自动换气调温系统应用在花卉培育温室大棚中。
The automatic control of frequency converter in dryer system are pointed out.
突出了变频器在干燥系统中的自动控制。
The automatic production system is computerized by the central computer and frequency modulation and motor speed change are made by front-end control CARDS.
基于计算机控制的楞纸板自动生产系统，以主控计算机为自动控制核心，通过前端控制卡，实现了对变频器进行调节，和对电动机调速。
In order to make the RF source and the waveguide have the same resonant frequency, the automatic frequency control (AFC) system is used.
为了使得射频源和波导管的频率保持一致，采用了自动频率控制系统(afc)。
The relatively complete theory of frequency method and root locus method for the design of automatic control system was set up through the efforts of numerous scholars after world war II.
二次大战以后，经过众多学者的努力，形成了较为完整的自动控制系统设计的频率法理论和根轨迹法理论。
Automatic constant pressure control of system has completed by press-sensor, PLC, frequency converter etc.
系统通过压力传感器、PLC、变频器等设备完成供水系统自动恒压控制。
The movement law and electric driving system are analyzed. Variable frequency technique used in the system is discussed and PLC is used for automatic control of the pumping unit.
分析了数控抽油机的运动规律及电力拖动系统，论述了变频调速技术在系统中的应用。应用可编程控制器(PLC)完成抽油系统的自动控制。
Shaking frequency adjustment, rectifier automatic control system, computer control system.
振筛频率调整、整流器自动控制、计算机控制系统。
The condenser pump frequency conversion revolution plays a key role in the condensed water system automatic control loop.
凝结泵变频改造对凝结水系统中的自动控制系统影响很大。
Purpose: wire wound resistor in ceramic casing is used in circuit of automatic control system, frequency conversion control system, power supply, top grade acoustics.
用途：陶瓷绕线电阻主要用于自动化控制系统，变频控制系统，电源设备，高档音响等电路中。
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
Fully automatic frequency variation speed regulating NC die cutting production line control system;
全自动变频调速、数控冲切生产线控制系统；
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