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|Title:||Control output devices - Actuators and displays for process automation: Part 12 in a series of tutorials in instrumentation and measurement|
|Authors:||De Silva, C.W. |
|Citation:||De Silva, C.W., Wang, Y. (2008-02). Control output devices - Actuators and displays for process automation: Part 12 in a series of tutorials in instrumentation and measurement. IEEE Instrumentation and Measurement Magazine 11 (1) : 38-45. ScholarBank@NUS Repository. https://doi.org/10.1109/IM-M.2008.4449013|
|Abstract:||The integrated part of practical control systems is actuators that continuously receive commands from its controllers and drive a plant to reach a pre-specified control objective. There are various common actuators such as electric motors and linear actuators. The principles and applications of dc motors, ac induction motors, stepper motors, solenoid actuator, and micromotors employed in process automation were introduced. Driven by direct current and converts electrical energy into rotational mechanical energy, dc motors are typically employed in automated industrial processes and its operating principle is based on "Lorentz's Law"; ac induction motors possess advantages including low cost, convenient power supply, no need for a commutator and brush mechanisms, no electric arcing, high reliability, and light weight; solenoids are linear actuators that usually acts as an "on/off" actuator that switches the mechanical state of a moving device; stepper motors receives a sequence of electrical pulse commands and drives its rotor in rotating in discrete steps and commonly used in many industrial equipments; and lastly, microactuators is the new member of the output equipment family.|
|Source Title:||IEEE Instrumentation and Measurement Magazine|
|Appears in Collections:||Staff Publications|
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