学科分类
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9 个结果
  • 简介:UVwavelengthauto-tunedoutputsystemisrealizedbythedifferencemethod.Controlledbythemicroprocessor,outputwavelengthauto-trackingisachieved.Besides,equipmentself-checkingauto-positioningandtemperaturecorrectarerealized.Thewavelengthtunedoutputefficiencyintheexperimentisbetterthan97%.

  • 标签: 紫外线 波长自动跟踪 微处理机控制 可调谐 闭环控制
  • 简介:Wedemonstrateanelectric-controlledterahertz(THz)modulatorwhichcanbeusedtorealizeamplitudemodulationofterahertzwaveswithslightphoto-doping.TheTHzpulsetransmissionwasefficientlymodulatedbyelectricallycontrollingthemonolayersilicon-baseddevice.Themodulationdepthreached100%almostwhentheappliedvoltagewas7Vatanexternallaserintensityof0.6W/cm2.Thesaturationvoltagereducedwiththeincreaseofthephoto-excitedintensity.InaTHzcontinuouswave(CW)system,asignificantfallinbothTHztransmissionandreflectionwasalsoobservedwiththeincreaseofappliedvoltage.ThisreductionintheTHztransmissionandreflectionwasinducedbytheabsorptionforelectroninjection.Theresultsshowthatahigh-efficiencyandhighmodulationdepthbroadbandelectric-controlledterahertzmodulatorinapureSistructurehasbeenrealized.

  • 标签: 电光调制器 掺杂 太赫兹波 有源 电压降低 太赫兹脉冲
  • 简介:Wirelesssensornetworks(WSNs)consistofsensornodesthatbroadcastamessagewithinanetwork.Efficientbroadcastingisakeyrequirementinsensornetworksandhasbeenafocalpointofresearchoverthelastfewyears.Therearemanychallengingtasksinthenetwork,includingredundancycontrolandsensornodelocalizationthatmainlydependonbroadcasting.Inthispaper,weproposeabroadcastingalgorithmtocontrolredundancyandimprovelocalization(BACRIL)inWSNs.Theproposedalgorithmincorporatesthebenefitsofthegossipprotocolforoptimizingmessagebroadcastingwithinthenetwork.Simulationresultsshowacontrolledlevelofredundancy,whichisupto57.6%ifthenumberofsensornodesdeployedina500m500mareaareincreasedfrom50to500.

  • 标签: 无线传感器网络 广播算法 冗余控制 节点定位 受控 传感器节点
  • 简介:这份报纸讨论由连接到在在微格子的系统有精力存储系统和力量电子学的角色的微格子的systems.The好处形式的本地负担的分布式的代组成的未来力量系统是纸也检验让一个关键角色怎么微格子在聪明的格子的发展玩的presented.This。

  • 标签: 能源系统 电网系统 存储设备 电子控制 智能 应用
  • 简介:Byutilizingtotalmagneticfluxφoftheprimaryandsecondarywindingsoftheflybacktransformerasastatevariable,thediscrete-timemodelofcurrent-modecontrolledflybackconverterisestablished,uponwhichthebifurcationbehaviorsoftheconverterareanalyzedandtwoboundaryclassificationequationsoftheorbitstateshiftingareobtained.Theoperation-stateregionsofthecurrent-modecontrolledflybackconverterarewellclassifiedbytwoboundaryclassificationequations.Thetheoreticalanalysisresultsareverifiedbypowerelectronicssimulator(PSIM).Theestimationofoperation-stateregionsfortheflybackconverterisusefulforthedesignofcircuitparameters,stabilitycontrolofchaos,andchaos-basedapplications.

  • 标签: 反激式变换器 电流模式控制 状态估计 转换器 动力学 离散时间模型
  • 简介:Usingcomputer-controlledliquidcrystaldisplay(LCD)asanimageprocessorandaCCDcameraasadetector,phase-onlycorrelationmeasurementisperformedwiththeaidofjointtransformcorrelationmethod(JTC).Thiscomputer-controlledLCD-CCDimageprocessingsystemmaybeapowerfultoolfordefectdetection,positioncontrolandpatternrecognition.Itenablesnewpossibilitiesinanalogreal-timeimageprocessing.Thisisofgreatinterestinmicroelectronicmanufacturingtodayandinthefuture.

  • 标签: 计算机控制 图像处理器 液晶显示器 CCD相机 相测量
  • 简介:我们建议一个新方法执行极端高速度所有光remotecontrolledX--也不在由利用亢奋的正割的相互作用的很长的距离的逻辑操作光soliton脉搏(HOSP)。实现如此的逻辑操作,维持一个特别条件的三HOSP被介绍进他们与对方一起交往的光纤维。他们中的二个与另外的HOSP的不变的被触发带逻辑操作的输入。

  • 标签: 孤立子脉冲 逻辑操作 HOSP 纤维
  • 简介:为了提高OpenFlow的通讯质量,控制了所有光的网络,光signal-to-noise比率全面了解(OSNR-CA)为基于的lightpath控制建模计划被建议。这条途径把主要物理层的光缺陷转变成OSNR价值,并且沿着lightpath考虑光信号的这全面OSNR值,当用开流动的协议为连接请求建立lightpath时。而且,建议计划做在每个节点监视功能的OSNR的完整的优点,并且由扩大OpenFlow协议的消息根据comprehensive-OSNR价值分配lightpath,以便保证lightpath的可靠建立。模拟结果证明建议计划以包损失率和lightpath建立时间有更好的性能。

  • 标签: OSNR 全光网络 流量控制 光路 感知模型 控制系统