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.

DCL electric actuators earn ATEX/IECEx certificates

DCL, a manufacturer of compact valve electric actuators, has recently earned the ATEX/IECEx certificates for its DCL-Ex series explosion proof electric actuators, issued by SGS Fimko Oy and Baseefa respectively.

Actuator is easy to install, modification & maintenance

With the BR31a Edition 2020+ integrated automated quarter-turn actuator, SAMSON PFEIFFER has developed an actuator that offers many advantages for the process industry.

Retrofit of legacy actuators provide Indian airport with critical performance data

An aviation fuel station at a major Indian airport has been enhanced with the installation of intelligent electric actuators from Rotork.

Actuators that are UV stabilised

Limitorque MX20’s close-coupled AcroGears AG-B6 bevel gearboxes and fitted to AVFI Pty Ltd gate valves.

Velan ABV has shipped the largest cable drive actuators

Velan ABV is proud to have shipped the largest Cable Drive Actuators ever made before.

Pneumatic spring return actuators for Exxon Mobil

Closing the week with the release of Pneumatic Spring Return Actuators Model PNS-8-314-SRO4F-HW-ITR with their Control System.

KTC Systemtechnik’s new development of its actuators

German manufacturer KTC Systemtechnik produces hydraulic and electro-hydraulic actuators for more than 10 years.

Intelligent electric actuators provide flow control at South Korean chemical plant

Over a 100 multi-turn and part-turn intelligent electric actuators have been installed at a new petrochemical site in Daesan, South Korea.

Actuator business finds success in niche oil and gas market

With 50 years’ experience in the valve industry, hydraulic actuator specialist, Advanced Actuators, is finding continued success with a surge in demand for stepping actuators for choke valve control.

Severn delivers an order for oil & gas offshore

British valve and actuators manufacturer Severn recently manufactured and delivered a repeat order of five 5000 series Control valves for an Oil & Gas Offshore application for a client based in the North Sea.

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.