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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.

Stainless spool valve NG6 with roller actuation

Wandfluh has extended the proven roller valve with an execution for use in very corrosive environments. The valve is made from stainless materials and coated with high-quality surface protection.

Spool valve NG10 with roller actuation WDTFA10

Wandflut’s existing roller valve has been equipped with a more robust actuating mechanism and the hydraulic peak performances have been increased.

Wouter Witzel’s zero maintenance valves

Wouter Witzel butterfly valves from AVK Southern Africa provided substantial cost-savings and reduced personnel requirements for KwaZulu Natal-based Umfolozi Sugar Mill (USM).

Spool valve NG4 with roller actuation WDTFA04

Wandfluh has equipped the existing roller valve with a more robust actuating mechanism and increased the hydraulic peak performances.

Parker releases LM-pro linear motor proportional valve

The Precision Fluidics Division of Parker Hannifin Corporation, the motion and control technologies company announced the release of their new Parker LM-Pro Linear Motor Proportional Valve targeted at the respiratory and anesthesia markets.

Rotork Increases Versatility of the CK Range Actuators

Rotork has increased the versatility of the CK range of modular electric valve actuators with the introduction of the CK Atronik, an intermediate level integral starter control option, providing a ready-to-operate actuation solution to meet the requirements of plant specifications.

HAS offers an alternate solution to electrification

Localized control for both mobile and industrial applications is now a viable option thanks to the Hybrid Actuation System (HAS).

Eastern Controls partners with Flo-Tite

Eastern Controls, Inc., a leader in process solutions and workforce development, announced a new manufacturing partnership with Flo-Tite, Inc.

Ex-protection solenoid spool valve

The proven spool valves for use in Zone 0 are now available with an extended flow range. This in the nominal sizes NG4 and NG6.

Rotork electric actuators for upstream gas production

Rotork intelligent full-turn electric actuators have been supplied for upstream shale gas production wells in the USA. Engineered for choke and control valve applications, Rotork’s IQTF actuators provide reliable flow control for oil and gas or process operations, capable of achieving accuracy to 0.3% and resolution to 0.1%.

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.