Actuator and control

An electric actuator is a device used to convert electricity into kinetic energy in either a linear or rotary motion.

It automates damper or valve in order to increase process efficiency and complexity.

Designs for electric actuators are based on the specific tasks they accomplish within the processes for which they’re intended, and they can vary in both dimension and size.

There are various types of actuators such as pneumatic actuators, hydraulic actuators, etc.

Electric actuators appear in a number of industries.

Typically, they’re used in industrial applications associated with manufacturing valves, pumps, and motors.

The most commonly automate industrial valves, and many types of technical process plants use them, including Upstream, midstream, and downstream oil and gas plants, Wastewater treatment plants, Power plants, Food, and beverage plants,

Farming and agricultural plants, Pulp and paper plants. A control system is a device or set of devices, that manages, commands directs or regulates the behavior of other devices or systems.

Industrial Control Systems are used in production for controlling equipment or instruments.

There are two common types of control systems, open-loop control systems, and closed-loop control systems.

In open-loop control systems output is generated based on inputs.

In closed-loop control systems current output is taken into consideration and corrections are made based on feedback.

A closed-loop system is also called a feedback control system. In open-loop control systems, the output is not feed-back to the input.

So, the control action is independent of the desired output. Examples include traffic lights.

In closed-loop control systems, the output is feedback to the input. So, the control action is dependent on the desired output. Washing machines serve an application for control systems.