8920-PS-DC***

8920-PS-DC***
8920-PS-DC***
8920-PS-DC***



机电控制系统的结构和机电控制对象

机电控制是研究如何设计控制器并合理选择或设计放大元件、执行元件、检测与转换元件、导向与支承元件和传动机构等，并由此组成机电控制系统使机电设备达到所要求的性能的一门科学，在机电一体化技术中占有非常重要的地位。

机电控制系统是机电一体化产品及系统中承担着控制对象输出，并按照指令规定的规律变化的功能单元，是机电一体化产品及系统的重要组成部分。机电控制系统是一种自动控制系统。

机电控制系统一般由指令元件，比较、综合与放大元件，转换与功率放大元件、执行元件、工作机构、检测与转换元件等6部分组成。

机电控制系统的工作原理是：有指令元件发出指令，通过比较、综合与放大元件将此信号与输出反馈信号比较，再将差值进行处理和放大、控制及转换，将此处理后的信号加到功率放大元件并施加到执行元件的输入信号，使得执行元件按指令的要求运动；而执行元件往往和机电装备的工作机构相连接，从而使机电装备的被控量（如位移、速度、力、转矩等）符合所要求的规律。

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