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Today’s automatic control technology is all based on
the concept of feedback. The essence of the feedback theory
consists of three components: measurement, comparison, and correction.
Measuring the quantity of the variable to be controlled, comparing
it with the desired value, and using the error to correct the
control action is the basic procedure of feedback automatic
control.
The key to the theory and application of automatic control
is the ability to make the correction based on proper measurement
and comparison. In this mini tutorial, the existing control
methods are reviewed and discussed.
Single-loop MFA control system
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