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.

Oliver Valvetek supplies on short lead-time

Oliver Valvetek distributes the first of two orders for its Subsea ¾” Actuated Gate Valves, earmarked for South America.

Anglian Water extends AUMA Actuators’ SLA to 2028

AUMA Actuators Limited (AUMA UK) has successfully extended its Service Level Agreement (SLA) with Anglian Water until 2028.

Limitorque QX Actuators at Drouin treatment plant

Limitorque QX series actuators were used on a recent $55 million dollar upgrade to the the Gippsland Water Drouin treatment plant.

Swagelok announces the release of the ALD7 UHP valve

Swagelok, a provider of fluid system products, assemblies, and related services, has announced the release of the Swagelok® ALD7 ultrahigh-purity (UHP) diaphragm valve

Precision Electric Actuators offer longer life

Electrak® LL series high-performance electric actuators from Thomson Industries Inc. are aimed at applications where long maintenance-free working life and extended duty cycle lifting and moving tasks in challenging environments are prime requisites.

Posi-Flate butterfly valve sizes from 2 to 24 Inch

Posi-flate’s unique butterfly valve uses an inflatable seat to seal with air pressure not friction.

Adeline gives her tick of approval

Adeline Ting gives her tick of approval on another Limitorque actuator about to leave the automation facility.

Conex Bänninger launches control valve

Conex Bänninger, a manufacturer of fittings and valves for plumbing, heating, air conditioning, and refrigeration, has added pressure-independent control valves (PICVs) to its already extensive portfolio of products.

Manufacturer’s turbine bypass technology

One UK manufacturer has revamped its hydraulic controls systems for the critical application of turbine bypass valves in the power industry,

Rotork intelligent actuation at a water adventure site

IQ3 actuators from Rotork have improved and modernised the flow control system at a white water centre in the northeast of England, UK.

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.