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control system |
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control systemMeans by which a set of variable quantities is held constant or caused to vary in a prescribed way. Control systems are intimately related to the concept of automation but have an ancient history. Roman engineers maintained water levels in aqueducts by means of floating valves that opened and closed at appropriate levels. James Watt's flyball governor (1769) regulated steam flow to a steam engine to maintain constant engine speed despite a changing load. In World War II, control-system theory was applied to anti-aircraft batteries and fire-control systems. The introduction of analog and digital computers opened the way for much greater complexity in automatic control theory. See also Jacquard loom, pneumatic device, servomechanism. control systemSee process control, industrial automation and control network. control system [kən′trōl ‚sis·təm] (engineering) A system in which one or more outputs are forced to change in a desired manner as time progresses. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The control system offering provides a fully integrated range of in-plant and control room hardware and software, designed to optimize plant performance in the production environment. Safety is, or should be, the primary mission of the control system. Voith Paper Automation was responsible for the complete machine control system including process visualization system, hydraulic and pneumatic systems, measuring, control and electrical equipment, low-voltage MCC, as well as for supervision of installation and start-up. |
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