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1、无锡职业技术学院毕业设计说明书(外文翻译)外文翻译PIDCONTROLSYSTEMIndustrialautomationhasbecomeanimportantindicatortomeasurethelevelofmodernizationofallwalksoflife.Meanwhile,thedevelopmenthasalsoexperiencedaclassicalcontroltheoryandcontroltheory,themoderncontroltheoryandtheoryofintelligentcontrol
2、inthreestages.Intelligentcontrolisaclassicexampleoffuzzyautomaticwashingmachines.Controlsystemscanbedividedintoopenloopcontrolsystemandclosed-loopcontrolsystem.Controlsystemincludesacontroller,sensor,transmitter,theexecutingagency,Iacceptinputandoutput.Aftertheoutputcontr
3、olleroutputinterfaceenforcementagencychargedwithawarsystem;Chargedwithvolumecontrolsystem,throughsensors.Transmitterbyinputinterfacetothecontroller.Differentcontrolsystems,sensor,transmitter,andtheexecutingagencyisnotthesame.Forexample,pressurecontrolsystemusingpressurese
4、nsors.Heatingthesensorisatemperaturesensorcontrolsystem.Atpresent,orPIDcontrolandintelligentcontrollerPIDcontroller(meters)havemany,engineeringproductshavebeenwidelyusedinawidevarietyofPIDcontrollerproducts.majorcompanieshavedevelopedanintelligentself-tuningPIDregulator(i
5、ntelligentAmpèregulator),whichautomaticallyadjusttheparametersofaPIDcontrollerisintelligentself-tuningoradjustment,adaptivealgorithmistobeachieved.PIDcontrolisachievedusingpressure,temperature,flow,liquidlevelcontroldevice.PIDcontrolfunctioncanberealizedintheprogrammablel
6、ogiccontroller(PLC).TherePIDcontrolofthePC,etc.canberealized.ProgrammableLogicController(PLC)isusedtoachieveitsPIDcontrolloopcontrolmodule.andprogrammablelogiccontroller(PLC)canbeconnecteddirectlywithControlNet.RockwellsuchasthePLC-5.PIDcontrollercanalsocontrolfunction,su
7、chasRockwell'sLogixproductlines.ControlNetitcanbelinkeddirectlywiththeuseofthenetworktoachieveitsremotecontrolfunction.1,Theopen-loopcontrolsystemsOpen-loopcontrolsystemistheobjectoftheoutput(controlvolume)ofthecontroller(controller),theoutputwillnotbeaffected.Inthiscontr
8、olsystem,notdependentonthevolumewillbechargedandsentbacktoformagainstanyclosed-loop.-10-无锡职业技术学院
