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在现场仪表中,执行器是自动化技术工具中的一种,是接受控制信息并对受控对象施加控制作用的装置。过程控制系统中,执行器由执行机构和调节机构二部分组成。调节机构通过执行元件直接改变生产过程的参数,使生产过程满足预定的要求。执行机构则接受来自控制器的控制信息,把它转换为驱动调节机构的输出(如角位移或直线位移输
In the field instrument, the actuator is one of the automation technology tools, which is a device that receives the control information and exerts the control action on the controlled object. Process control system, the actuator by the implementing agencies and regulatory agencies in two parts. Adjustment mechanism through the implementation of components directly change the parameters of the production process, the production process to meet the predetermined requirements. The actuator receives the control information from the controller and converts it to the output of the drive adjustment mechanism (eg angular displacement or linear displacement