x线管旋转阳极控制电路的设计与实现

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1、中文摘要该控制电路前期通过了仿真测试，信号低频漂移输出通过改善信号传输条件和采用屏蔽驱动、浮地跟踪等电路技术加以消除和处理。后期经多次试验、测试后证明各项功能相对完善，运行安全性和可靠性好。本课题首次提出在x线管旋转阳极控制电路中采用逆变电源控制，应用单片机管理，不仅能调用x线管参数控制其旋转阳极电路，而且实现了与X线机主机系统实时通信，更好地控制X线的输出。关键词：智能化，X线管，旋转阳极控制，逆变电源，单片机Ⅱ硕士学位论文DesignandImplementationofControlCircuitforM

2、edicalRotatingAnodeX-rayTubeABSTRACTSinceRoentgendiscoveredtheX·rayin1895andfirstuseditinclinicaldiagnosis，thedevelopmentofmedicinehascomeintoanewera．Duringthepast100years，thex-rayequipmenthasgonethroughtheperiodsofelectrontube，integrationcircuitandcomputer,

3、andnow,itcomesintodigitalnetworkera,inwhichtraditionalX·rayequipmentsarebeingreplacedbyCRandDR．Aswell，thetechnologyofX—rayequipmentisgettingprogressesfrompowerfrequency(50Hz)tointermediatefrequency(400-20kHz)andhighfrequency(30kHz)．FuturedevelopmentofX-rayeq

4、uipmentismainlyaboutthefollowingthreeaspects：1．ImprovingX-rayimage；2．DiminishingX·rayexposuretodoctorsandpatients；3．Automatingtheoperationanddiagnosis．Thepurposeofthisresearchistodesignanintelligentcontrolcircuitoftherotatinganodewhichautomaticallyadjustsand

5、outputspowerparametersandtoapplyittoallkindsofX-raytubes．Theprinciplesofthedesignareintellectualization，lowpowerandlowcost．Consideringsinglechipcomputerisusedasthecontrolcore，theoutputpowerisvariouswiththeconductionfrequencyoftheinverter．Thecontrolcircuitisc

6、omposedofsixfunctionalmodules：inputmodule，centralcontrolmodule，invertermodule，drivemodule，alarmmoduleandpowermodule．Asthecontrolcore，thecentralcontrolmoduleincludes89C51singlechipcomputer,andiscapableofmasteringoperatingconditionsofanothermodulesbyreceivingi

7、nstructionsfromthemandcontrollingthembysentinginstructions，makingthesystemanorganicwhole．Thecircuithasbeenimplementedvariouspreliminarysimulationtests，signallowfrequencydrifthasbeeneliminatedbysignalconductionmelioration，shieldguardandfloatinggroundtrackingt

8、echniques．Laterexperimentsandtestshaveprovedthatthiscircuitissafeandreliable．Therotatinganodecontrolcircuitemployingpowerinvertercontrolandsingle-·chip··microcomputermanagementnotonlycallsthepar