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1、本科毕业设计（论文）外文翻译译文学生姓名：康甲甲院（系）：电子工程学院专业班级：测控0801指导教师：薛晓书完成日期：2012年3月29日1SteppermotorSteppermotorisakindofelectricalpulsesintoangulardisplacementoftheimplementingagency.Popularlittlelesson:Whenthedriverreceivesasteppulsesignal,itwilldriveasteppermotortosetthedirectionof
2、rotationatafixedangle(andthestepangle).Youcancontrolthenumberofpulsestocontroltheangulardisplacement,soastoachieveaccuratepositioningpurposes;thesametimeyoucancontrolthepulsefrequencytocontrolthemotorrotationspeedandacceleration,toachievespeedcontrolpurposes.Inthrees
3、teppermotors:permanentmagnet(PM),reactive(VR)andhybrid(HB)permanentmagnetstepperusuallytwo-phase,torque,andsmaller,stepangleof7.5degreesorthegeneral15degrees;reactionstepisgenerallythree-phase,canachievehightorqueoutput,stepangleof1.5degreesisgenerally,butthenoiseand
4、vibrationarelarge.80countriesinEuropeandAmericahavebeeneliminated;hybridstepperisamixofpermanentmagnetandreactiveadvantages.Itconsistsoftwophasesandthefive-phase:two-phasestepangleof1.8degreeswhilethegeneralfive-phasestepangleof0.72degreesgenerally.ThemostwidelyusedS
5、tepperMotor.SteppermotorSteppermotoristheelectricpulsesignalsintoangulardisplacementorlineardisplacementoftheopen-loopsteppermotorcontrolelementpieces.Inthecaseofnon-overloaded,themotorspeed,stoppositiondependsonlyonthepulsefrequencyandpulsenumber,regardlessofloadcha
6、nges,whenthedriverreceivesasteppulsesignal,itwilldriveasteppermotortoSetthedirectionofrotationofafixedangle,calledthe"stepangle",whichtheangleofrotationisfixedstepbystepoperation.Numberofpulsescanbecontrolledbycontrollingtheangulardisplacement,soastoachieveaccuratepo
7、sitioningpurposes;thesametimebycontrollingthepulsefrequencytocontrolthemotorrotationspeedandacceleration,toachievespeedcontrolpurposes.WorkInductionmotorisasteppermotor,doesitworkistheuseofelectroniccircuits,theDCpowersupplyintoatime-sharing,multi-phasetimingcontrolc
8、urrent,thiscurrentsteppermotorpowersupply,thesteppermotortoworkproperly,Thedriveissharingpowersupplyforthesteppermotor,thepolyphase
