Actuators (final-control elements) form the interface between the electronic signal processor (data processing) and the actual process (mechanical motion). They convert the low-power signals conveying the positioning information into operating signals of an energy level adequate for process control. Signal transducers are combined with amplifier elements to exploit the physical transformation principles governing the inter relation ships between various forms of energy (electrical – mechanical – fluid – thermal).
KeywordsElectric Actuator Synchronous Machine Electromagnetic Actuator Electromechanical Actuator Asynchronous Machine
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