Provide in the chemistry industry, the control of the liquid is to relate to the important link.This theory to synthesize to make automate the control system experiment flat ground contain process for the sake of the study background, appear the intelligence to control the method for the sake of main parts of toolses, the technique that continues to open the exhibition control method research.Along to have science to develop the person to beginning to make use of the pioneer of tool and dissimilarity technically arrives to draw up the calculator control system to arrive to replace the artificial complicated control operation constantly, the intelligence appears to control the woulds is a very fine control method.The numerical type that gathers the automatic control technique, calculator technique, the correspondence technique as integral whole controls the intelligence control to have very and abundant operation function generally, and vivid convenience, sketch or numerals of usage manifestation the image keeps the view and circulates safe credibility etc. advantage, intelligence control appearance more and more extensively of is apply to control the realm in the industry.
At the appearance calculation road that control, has been should experiment the flat ground goes to offset the intelligence to appear to draw up to control the system behind of track.Then request to choose the different control calculation road according to the system of concrete control, the main part track choice PI modulator of behind, bad habit- the track choice the P modulator of behind arrive to complete all controls toward system, and carry on the back the long method of arrive to continue to open the exhibition to all of the modulator parameters to carry on the back the long through all of the engineerings, make the system input the stable emergence very very soon under the regular work of condition, attain the virtuous result.
The research of this topic, is beneficial to make we control some basic knowledge and the calculation road that process controls, the contact arrives the supply for the sake of the theories good and try at court the environment body last.
Key word: the control of the liquid of A; the string class control; the intelligence appears the control; the PID control
