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Definitions Edit

An actuator

detects an incoming signal and respond by changing something in the environment. For example, a relay is an actuator that toggles a mechanical switch, and can thus cause a good number of responses to occur such as enabling illumination, heating system, audible alarm, and so on. Actuators such as motors, pneumatics, and hydraulics can move objects and pump fluids.
[a] peripheral ( output ) device which translates electrical signals into mechanical actions; e.g., a stepper motor which acts on an electrical signal received from a computer instructing it to turn its shaft a certain number of degrees or a certain number of rotations.[1]
[is] a mechanical device for moving or controlling a mechanism or system. It takes energy, usually transported by air, electric current, or liquid, and converts that into some kind of motion.[2]
[is a] device which conveys digital information to effect a change of some property of a physical entity.[3]

References Edit

  1. Glossary of Computer System Software Development Terminology.
  2. IoT-A Terminology (full-text).
  3. Framework for Cyber-Physical Systems, at 5.

See also Edit

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