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Actuation

Actuation refers to the process of converting energy into motion in various systems and devices. It’s a crucial component in a myriad of technologies, ranging from simple mechanisms to complex machinery.

Actuation is the mechanism of initiating and controlling movements in various systems, which could be mechanical, electrical, hydraulic, or pneumatic, among others. This concept is widely used in industries like robotics, automotive, aerospace, and manufacturing. It encompasses a wide range of components and techniques designed to convert various forms of energy into physical motion.

PetrolValves Group awarded HP turbine bypass system

PetrolValves Group has been awarded for the supply of the high pressure turbine bypass system for the Atinkou combined cycle

Curtiss-Wright launches sense & control actuator model

Curtiss-Wright’s Actuation Division has announced the release of its newest motor/actuators with integral controls, the Exlar SA-R080 rotary, and SA-L080 linear actuator.

Neles valve offering for improved reliability & safety

Neles has showcased its comprehensive valve, valve automation, and service offering for all process industries at Valve World Americas Expo & Conference 2021 in Houston, Texas.

Mokveld introduces the first true zero-emission valve

Mokveld has incorporated an electric actuator inside its new valve, eliminating the stem seal to the atmosphere entirely.

R.E. Mason expands local service offering

R.E. Mason is excited to expand its role as the exclusive Emerson Premier Service Provider in their territory, and assume operation of Emerson Lifecycle Repair Centers in Columbia, SC, and Richmond, VA.

Eastern Controls, Inc. announces DeZURIK partnership

Eastern Controls, Inc. (ECI) has officially announced its partnership with Minnesota-based DeZURIK, Inc., as the exclusive Industrial representative for the Northern New Jersey and Metro New York industrial markets.

Compact ball valves and compact twinsafe valves

The Compact Style Single Ball Valves are designed to provide considerable space and weight savings when compared to a traditional flanged end ball valve.

Celeros Flow offers Copes-Vulcan general service valves

Celeros Flow Technology offers Copes-Vulcan General Service (GS) Valves for reliable and economical fluid control in multiple power and process applications.

Penstock flow control in world’s first electric town

AUMA SAV variable speed electric actuators optimise water to flow through the dam system at Blackwater Reservoir near Kinlochleven, Scotland.

CORTEC’s new back pressure valve

CORTEC participated this week at LSU’s PERTT Lab in Baton Rouge, La., in a flow loop test of its new Back Pressure Valve design.

Actuation

The primary devices that carry out actuation are called actuators. These can be categorized as:

  1. Mechanical Actuators: Convert rotary motion to linear motion or vice versa, often using gears, rails, or screws.
  2. Electric Actuators: Utilize electric motors to generate motion, controlled by varying voltage, current, or electromagnetic fields.
  3. Hydraulic Actuators: Use the pressure of a liquid (usually oil) to induce motion, often to generate high forces in heavy machinery.
  4. Pneumatic Actuators: Operate using compressed air or gas to create motion, often found in industrial automation setups.
  5. Thermal or Magnetic Actuators: Leverage thermal expansion or magnetic fields to generate motion, usually in micro or nano-scale applications.

2. Control Systems

These systems are essential in regulating the functioning of actuators, often utilizing feedback loops to maintain precision and efficiency. They may include:

  1. Manual Controls: Simple interfaces like levers or switches to control actuators.
  2. Automatic Controls: Utilize sensors and microcontrollers to automatically control the actuation process.
  3. Software Interfaces: Complex control setups involving software platforms integrated with hardware components to enable sophisticated control strategies.

3. Power Sources

Different actuation systems require different power sources, which could range from electrical batteries, hydraulic pumps, or pneumatic compressors.

Applications

Actuation finds its application in various fields:

  1. Robotics: In the control of robotic arms, legs, or other appendages.
  2. Aerospace: Utilized in the functioning of various components like flaps, landing gear, and engines.
  3. Automotive: In control systems like power steering, braking systems, and throttle control.
  4. Industrial Machinery: In machines used for manufacturing, packaging, and other industrial processes.
  5. Healthcare: In devices like prosthetics and other healthcare equipment.
  6. Consumer Electronics: In gadgets and appliances, for functions like zooming in cameras or adjusting settings.

Future Trends

With advancements in technology, actuation systems are expected to become more sophisticated, incorporating features like:

  1. Internet of Things (IoT): Integration with IoT for smarter and more connected control systems.
  2. Artificial Intelligence (AI): Incorporating AI for predictive maintenance and automated control strategies.
  3. Miniaturization: Development of smaller and more compact actuators for use in micro and nano-scale applications.

Conclusion

Actuation is a dynamic and evolving field, playing a critical role in modern technology and industry. It encompasses a wide range of components, systems, and techniques that convert energy into physical motion, finding applications in a variety of sectors and continually evolving to incorporate new advancements and innovations.