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:100225855(2007)0120036203:(1977-),,,,1,2,1(11,233012;21,210007),,,,;;:TP15:AStudyonfault2diagnosingforelectricactuatorofvalveYANGBo1,WANGJin2quan2,LIUQi2guo1(1.BengBunavalpettyofficeracademy,Bengbu233012,China;2.engineeringInstituteofEngineerCorps,PLAUniv.ofSci.&Tech.,Nanjing210007,China)Abstract:Analyzingdifferenttypesofvalvestorqueprofile,aresultisreachedthatthetorquechar2acteristicistheimportantbasisofthefault2diagnosing.Andamethodoffault2diagnosingwhichcanfigureoutmanykindsofelectricalandmechanicaltroublebasedontorqueispresentedinthepaper.Keywords:electricactuatorofvalve;torque;fault2diagnosing1,,,,,,26,,,211,,,,,,,,,(1),,212O,,,,,,,6320071213(),,,,(2)12,,,,,3,,311(1),,,(2)(3),,(4)(5),,312,()1,,,,,LCD2,,,,,3,,,,,4,,,,,5,,,73200716,,7,,8,,,,9,,,,,,,,,,4,,JCZJN338,,,ROTORKIQ,,T=i,,,,,[6][7],,,,,,,5,,,,,,,1.IQJ.,2003,(8):40-41.2,,.J.,2001,22(7):17-19.3,.RK-ZJ.,2004.(1):57-58.4,.J.,2002,(3):33-34.5,.J.,1998,(3):27-28.6,,.J.,2005,(5):15-18.7Z.H.Kulski.ANovelApproachtoElectromagneticTorqueIdentificationProbleminCurrent-fedACDriveC.0-7803-1859-5/94,1994IEEE.(:2006109101)(11)1211=(a-b)/nabn,150N,200mm,,150N,,,,454,,,,,,1.[M].:,1992.(:2006108103)8320071