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What is a PID?

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โˆ™ 2008-02-05 21:57:37

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A proportional-integral-derivative controller (PID controller) is a generic control loop feedback mechanism widely used in industrial control systems. A PID controller attempts to correct the error between a measured process variable and a desired setpoint by calculating and then outputting a corrective action that can adjust the process accordingly.

http://en.wikipedia.org/wiki/PID_controller

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โˆ™ 2008-02-05 21:57:37
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