分析了在大型筛机上采用普通电机直接驱动激振器方法所存在的问题，提出用液压控制系统解决问题的方案。
This paper analyzed the problems related to the large vibrating screen directly driven by ordinary motor, and raised the idea of using hydraulic control system to tackle the problems.
位移传感器的安装结构是否合理，直接影响轧机液压辊缝控制系统的分辨率、控制精度、响应时间和维护。
The installation of position transducer in hydraulic AGC cylinder has direct effect on the resolution, accuracy control, response time and maintenance of the hydraulic AGC system.
采用可编程控制器(PLC)直接控制液压伺服阀，可以简化控制系统，降低成本。
Direct control of hydraulic servo valve by means of PLC can simplify the control of hydraulic system and reduce cost.
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