Active Power

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Components that have an average value flow in a unidirectional way from sources to loads and are measured in watts.

Assembly Lines

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A manufacturing process in which parts (usually interchangeable parts) are added as the semi-finished assembly moves from workstation to workstation where the parts are added in sequence until the final assembly is produced.

Automatic Process Control

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A combination of control engineering and chemical engineering disciplines that uses industrial control systems to achieve a production level of consistency, economy and safety which could not be achieved purely by human manual control.

Capacitance

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The ability of a body to store an electric charge.

Capacitor

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A passive two-terminal electrical component that stores electrical energy in the electric field.

Compressed Air

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Air kept under a pressure that is greater than atmospheric pressure.

Contactor

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A type of relay that can handle the high power required to directly control an electric motor or other loads.

Control Engineering

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Or control systems engineering. An engineering discipline that applies automatic controls theory to design systems with desired behaviors in control environments.

Control Loop

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A fundamental building block of industrial control systems consisting of all physical components and control functions necessary to automatically adjust the value of measured process variable (PV) to equal the value of a desired set point (SP). It includes the process sensor, controller function and the final control element (FCE) which are all required for automated control.

Digital Filter

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A system that performs mathematical operations to reduce or enhance certain aspects of a signal.