Working principle of electric actuator
Release Time:
Mar 21,2025
Electric actuator is a device that converts electrical energy into mechanical energy, widely used in the field of industrial automation to control the opening and closing of valves, dampers, and other equipment. This article will introduce the working principle of electric actuators.

Electric actuator is a device that converts electrical energy into mechanical energy, widely used in the field of industrial automation to control the opening and closing of valves, dampers, and other equipment. This article will introduce the working principle of electric actuators.
Basic structure:
-Electric actuators are mainly composed of motors, reduction mechanisms, transmission mechanisms, position sensors, and controllers.
-The motor provides power, and the reduction mechanism converts the high-speed low torque output of the motor into low-speed high torque output. The transmission mechanism transmits power to the controlled equipment (such as valves).
Control process:
-Electric actuators receive electrical signals from control systems such as PLC and DCS, which can be switch signals or analog signals.
-The controller drives the motor to rotate based on the received signal, and moves the controlled equipment to the designated position through the reduction mechanism and transmission mechanism.
-Position sensors (such as limit switches and encoders) detect the actual position of the controlled equipment and send feedback signals to the controller to achieve precise position control.
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