Difference between revisions of "Control theory"

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A control system is a device that keeps a variable at a certain value, despite only knowing what the current value of the variable is.  An example is a cruise control, which maintains a certain speed, but only measures the current speed, and knows nothing of the system that produces that speed (wind, car weight, grade).
 
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==References==
 
==References==

Revision as of 05:58, 25 June 2009

A control system is a device that keeps a variable at a certain value, despite only knowing what the current value of the variable is. An example is a cruise control, which maintains a certain speed, but only measures the current speed, and knows nothing of the system that produces that speed (wind, car weight, grade).

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