标签: gamma

lcd显示器性能专业评点……

Abstract:Althoughthereisconsiderableliteratureaboutsterilizationmethodsandequipment,thereisverylittlewrittenabouttheimpactofsterilizationonelectronics.Thisarticlecomparespopularsterilizationmethodsanddiscussestheirsuitabilityforobjectscontainingelectronics.Maxim>DesignSupport>AppNotes>1-WireDevices>APP5068Maxim>DesignSupport>AppNotes>GeneralEngineeringTopics>APP5068Keywords:sterilization,autoclave,ethyleneoxide,chlorinedioxide,hydrogenperoxide,gammaray,electronbeam,vhpAug09,2011APPLICATIONNOTE5068SterilizationMethodsandTheirImpactonMedicalDevicesContainingElectronicsBy:BernhardLinke,PrincipalMemberTechnicalStaffAbstract:Althoughthereisconsiderableliteratureaboutsterilizationmethodsandequipment,thereisverylittlewrittenabouttheimpactofsterilizationonelectronics.Thisarticlecom……

摘要：本教程介绍如何正电子发射断层显像（PET）成像系统产生的3-D医疗图像。文章详细介绍了如何PET系统检测伽玛射线产生的掺糖注射时不同的反应，受影响的组织。本文还讨论了如何竞争环境中的电气噪声影响成像，以及为什么它是重要的，准确地检测出光子的时间和运动，因此在患者中产生的信号可以本地化。通常在PET系统功能框图显示的IC元件。Maxim>Designsupport>Appnotes>A/DandD/AConversion/SamplingCircuits>APP4680Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4680Keywords:PET,positronemissiontomography,medicalimaging,medicalscan,3-Dmedical,gammarays,photon,electricalcomponentsformedicalMay10,2010APPLICATIONNOTE4680IntroductiontoPositronEmissionTomography(PET)ImagingAbstract:Thistutorialexplainshowpositronemissiontomography(PET)imagingsystemsgenerate3-Dmedicalimages.ThearticledetailshowthePETsystemdetectsgamma-raysproducedwheninjecteddopedsugarsreactdifferentlytoaffectedtissue.Thearticlealsodiscus……

比较器用来检测单个光子的伽马辐射。示意图、设计注意事项和组件选择进行讨论。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEMEASUREMENTCIRCUITSKeywords:gammaray,photon,radiationdetector,lownoiseopamp,PIN,photodiode,gammaradiation,Jul21,2003operationamplifiers,opamps,comparatorAPPLICATIONNOTE2236Gamma-PhotonRadiationDetectorAPINphotodiode,fourlow-noiseopampsandacomparatorareusedtodetectindividualphotonsofgammaradiation.Theschematic,designconsiderationsandcomponentselectionarediscussed.ThecircuitofFigure1includesaPINphotodiodethatdetectsindividualphotonsofgammaradiation.Whenaphotonstrikesadepletionregioncreatedbyreversebiasonthephotodiode,itproducesasmallamountofchargeinproportiontothephoton'senergy.Theresultingsignalisthen……

：PIN光电二极管，四个低噪声运算放大器和比较器，用于探测单个光子的伽玛射线。的原理，设计考虑和选择组件进行了讨论。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEMEASUREMENTCIRCUITSKeywords:gammaray,photon,radiationdetector,lownoiseopamp,PIN,photodiode,gammaradiation,Jul21,2003operationamplifiers,opamps,comparatorAPPLICATIONNOTE2236Gamma-PhotonRadiationDetectorAPINphotodiode,fourlow-noiseopampsandacomparatorareusedtodetectindividualphotonsofgammaradiation.Theschematic,designconsiderationsandcomponentselectionarediscussed.ThecircuitofFigure1includesaPINphotodiodethatdetectsindividualphotonsofgammaradiation.Whenaphotonstrikesadepletionregioncreatedbyreversebiasonthephotodiode,itproducesasmallamountofchargeinproportiontothephoton'senergy.Theresultingsignalisthen……

摘要：DS3514可编程gamma和VCOM电压发生器具有伽玛缓冲器，提供10位分辨率。这10位被存储在两个8位寄存器。本应用笔记介绍了如何计算伽玛寄存器的寄存器值。Maxim>AppNotes>DigitalPotentiometersDisplayDriversKeywords:DS3514,gamma,gammabuffer,gammaregister,10bitgamma,10bitgammabuffer,10bitdataJan20,2009register,GM,GMbuffer,GMregister,GMBank,gammabankAPPLICATIONNOTE4331Programming10-BitGammaRegistersontheDS3514Abstract:TheDS3514programmablegammaandVCOMvoltagegeneratorfeaturesgammabuffersthatprovide10bitsofresolution.These10bitsarestoredintwo8-bitregisters.Thisapplicationnoteexplainshowtocalculatetheregistervaluesforthegammaregisters.IntroductionTheDS3514programmablegammaandVCOMvoltagegeneratorhasgammabufferswith10bitsofresolution.Thismeansthatthereare1024possiblegammaoutputlevels.Therangeofsettingsforthesegammaregi……

摘要：DS3514可编程gamma和VCOM电压发生器具有伽玛缓冲器，提供10位分辨率。这10位被存储在两个8位寄存器。本应用笔记介绍了如何计算伽玛寄存器的寄存器值。Maxim>AppNotes>DigitalPotentiometersDisplayDriversKeywords:DS3514,gamma,gammabuffer,gammaregister,10bitgamma,10bitgammabuffer,10bitdataJan20,2009register,GM,GMbuffer,GMregister,GMBank,gammabankAPPLICATIONNOTE4331Programming10-BitGammaRegistersontheDS3514Abstract:TheDS3514programmablegammaandVCOMvoltagegeneratorfeaturesgammabuffersthatprovide10bitsofresolution.These10bitsarestoredintwo8-bitregisters.Thisapplicationnoteexplainshowtocalculatetheregistervaluesforthegammaregisters.IntroductionTheDS3514programmablegammaandVCOMvoltagegeneratorhasgammabufferswith10bitsofresolution.Thismeansthatthereare1024possiblegammaoutputlevels.Therangeofsettingsforthesegammaregi……

摘要：DS3514可编程gamma和VCOM电压发生器具有伽玛缓冲器，提供10位分辨率。这10位被存储在两个8位寄存器。本应用笔记介绍了如何计算伽玛寄存器的寄存器值。Maxim>AppNotes>DigitalPotentiometersDisplayDriversKeywords:DS3514,gamma,gammabuffer,gammaregister,10bitgamma,10bitgammabuffer,10bitdataJan20,2009register,GM,GMbuffer,GMregister,GMBank,gammabankAPPLICATIONNOTE4331Programming10-BitGammaRegistersontheDS3514Abstract:TheDS3514programmablegammaandVCOMvoltagegeneratorfeaturesgammabuffersthatprovide10bitsofresolution.These10bitsarestoredintwo8-bitregisters.Thisapplicationnoteexplainshowtocalculatetheregistervaluesforthegammaregisters.IntroductionTheDS3514programmablegammaandVCOMvoltagegeneratorhasgammabufferswith10bitsofresolution.Thismeansthatthereare1024possiblegammaoutputlevels.Therangeofsettingsforthesegammaregi……

摘要：这说明比较阴极射线管，电致发光，倒装点，白炽灯泡，液晶，发光二极管，聚合物发光二极管，有机发光二极管，辉光放电，等离子显示屏，真空荧光显示技术的优点和缺点。Maxim>AppNotes>DigitalPotentiometersDisplayDriversKeywords:DS3514,gamma,gammabuffer,gammaregister,10bitgamma,10bitgammabuffer,10bitdataJan20,2009register,GM,GMbuffer,GMregister,GMBank,gammabankAPPLICATIONNOTE4331Programming10-BitGammaRegistersontheDS3514Abstract:TheDS3514programmablegammaandVCOMvoltagegeneratorfeaturesgammabuffersthatprovide10bitsofresolution.These10bitsarestoredintwo8-bitregisters.Thisapplicationnoteexplainshowtocalculatetheregistervaluesforthegammaregisters.IntroductionTheDS3514programmablegammaandVCOMvoltagegeneratorhasgammabufferswith10bitsofresolution.Thismeansthatthereare1024possiblegammaoutputlevels.Therangeofsettingsforthesegammaregi……

摘要：Gamma校正用于纠正亮度和亮度之间的非线性关系。本应用笔记介绍MAXQ2000微控制器（μC）的固定频率PWM信号线性增加和减少LED的亮度，使用伽玛校正书面汇编程序。PWM占空比，位于实用ROM的内存在一个查找表（LUT）的存储，伽玛纠正，以产生线性亮度变化。使用免费的MAX-IDE开发工具软件编译和MAXQ2000评估板上运行。Maxim>AppNotes>DISPLAYDRIVERSKeywords:microcontrollers,assembler,LUT,look-uptable,gammacorrectionNov16,2005APPLICATIONNOTE3667UsingLookupTablestoPerformGammaCorrectiononLEDsAbstract:Gammacorrectionisusedtocorrectforthenonlinearrelationshipbetweenluminanceandbrightness.ThisapplicationnotepresentsanassemblyprogramwrittenfortheMAXQ2000microcontroller(C)thatusesgammacorrectionwithafixed-frequencyPWMsignaltolinearlyincreaseanddecreasethebrightnessofanLED.ThePWMdutycycles,storedinaLookupTable(LUT)locatedinUtilityROMmemory,aregammacorrectedtoproducelinearbrightnesschanges.ThesoftwarecompilesusingthefreeMAX-IDEdevelopmenttoolandrunsontheMAXQ2000evaluationkit.……

液晶TFTLCDGammaTuning校正原理与步骤MobileDriverICGammaTuningFAE:BradChen2006/02/151GammaTuning1.VCOMSetting&FeedthroughCompensation2.GammaResistorString3.GammaMeasurement4.GammaTuning5.Summary21.VCOMSetting&FeedthroughCompensationA.VCOMHπ(4V).B.VCOMLаFeed-through(Vgd).Feed-through,аCellDriverICрVgd.VCOMHDriverICOutputVgdRealCelllevelRealLCvoltageVCOML3C.Vgam1outGamma.4.3~4.8V(VRH=0010~0101)Vci1(REGP)=Vci,2.65~2.7V(Vci-0.15).VRH3VRH2VRH1VRH0VGAM1OUT0000001111000101REGPx1.55(2.7*1.55=4.19V)REGPx1.65(2.7*1.65=4.45V)REGPx1.75(2.7*1.75=4.72V)REGPx1.80(2.7*1.8=4.88V)VCOMHVgam1outGammaD10D0D63NegativeD0D63PositiveVCOML4D.VCOMH3.6V~4.1V,(VCM4-0=10100~11011)VCOMHStep=0.02*Vgam1out,80~90mV.R/……

Gamma校正的快速算法及其C语言实现中图分类号:TP317.4文献标识码:A文章编号:1009-2552(2006)04-0082-03Gamma校正的快速算法及其C语言实现曾嘉亮(汕头职业技术学院机电工程系,汕头515078)摘要:Gamma校正是数字图像显示前必不可少的操作。若直接套用公式来实现的话,执行效率非常低;许多文献都提到可以使用查找表来加速这一操作,然则语焉不详,并未具体介绍实现方法。在对gamma校正原理进行深入研究的基础上,构造出gamma校正查找表,并提出了运用该表对数字图像进行快速gamma校正的方法。该算法特别适用于在嵌入式系统中处理视频流。关键词:显示系统;gamma校正;查找表;快速算法AfastalgorithmofgammacorrectionanditsimplementationwithCZENGJia2liang(DepartmentofMechanicalandElectricalEngineering,CollegeofShantouPolytechnic,Shantou515078,China)Abstract:Gammacorrectionisanecessaryoperationforadigitalimagebeforeitissenttodisplay.But,ifthisoperationisperformedbyapplyingthecorrectionformulamechanically,apoorperformancewillbegot.Manyarticles……