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10 个结果
  • 简介:BeamModulatorofPhotoelectricPulse¥GuZhongdao;WangWeiandDongChengfuTheexplorationofnuclidefarfromtileβstabilityline(exotic...

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  • 简介:为检查火炮讨厌的人的一台光电的设备由与计算机处理的数字显示器栅栏传感器和数据组成。它能代替传统的机械measurer并且认识到火炮讨厌的人的自动检查。介绍简短这台设备的工作原则和分析。

  • 标签: 炮孔 光栅传感器 自动审查 精度分析
  • 简介:Thetructure,equivalentcircuit,noisesoucesofsiliconphotodiodeareanalyzed.Inordertoimprovethemeasuringlinearity,wemustchoosethesiliconphotodiodewithalargeRd,smallRsandI0andunderanoperationstateofoutputshort-circuit.Wemustlettheoperationamplifierworkinthecurrent-voltagetransferform.Alsoweanalyzedtheeffectsoftheinputnoisevoltage,theinputnoisecurrent,theinputoffsetvoltage,theinputoffsetcurrentoftheoperationamplifierandthenoisesofthesiliconphotodiodeonthecombinedcircuitoftheoperationamplifierwiththesiliconphotodiode.Consideringthesefactors,wecandesignthedetectivecircuitwithhighresponse,sensitivity,stability,linearityandSNR.

  • 标签: 硅基光电二极管 放大器 信噪比 检测电路 线性测量系统
  • 简介:Photoelectricpropertyofpolyanilinedopedwithdodecyl-benzeneincreasesobviously,whenpolyanilinedopedwithDBSAisirradiatedwithlight,Mixtureofsensitivematerialisadvantageoustotheabsorptionofpolyanilineinvisiblelightspectrum,andtheconductivityisalsoimproved.TheresultsofdielectricmeasurementsonpolyanilinedopedwithDBSAinanAl-PAn-DBSA-Alconfigurationasfunctionoffrequencyandtemperaturearereported.Thespace-chargepolarizationphenomenonisobserved.Carrierlifetimeismicrosecondmagnitudeandmobilityis(0.001-0.1)cm^2/V·s,whichareobtainedbycalculationorexperiment.Theactiveenergyisobtainedfromtherelationbetweenconductivityandtemperature.TheconductingmechanismofPAn-DBSAisanalyzed.

  • 标签: 电介质松驰 添加剂 光电功能材料 聚苯胺
  • 简介:Inordertoovercometheinconvenienceofmanualbubblecounting,abubblecounterbasedonphotoelectrictechniqueaimingforautomaticallydetectingandmeasuringminutegasleakageofcryogenicvalvesisproposed.Experimentshavebeenconductedonaself-builtapparatus,testingtheperformancewithdifferentgasinletstrategies(bottomgas-inletstrategyandsidegas-inletstrategy)andtheinfluenceofgaspipelength(0,1,2,4,6,8,10m)andleakagerate(around10,20,30,40bubbles/min)onfirstbubbletimeandbubblerate.Abufferof110cm3isinsertedbetweenleakagesourceandgaspipetosimulatethedown-streamcavumadjacenttothevalveclack.Basedonanalyzingtheexperimentaldata,experientialparametershavealsobeensummarizedtoguideleakagedetectionandmeasurementforengineeringapplications.Apracticalsystemhasalreadybeensuc-cessfullyappliedinacryogenictestingapparatusforcryogenicvalves.

  • 标签: 制冷技术 实验测量 低温阀 气泡计数器
  • 简介:Basedontheideaoftiltingaphotoelectricconversiondevice,themonocrystallinesiliconp-njunctiondevicewastiltedtomakelightincidentuponthedeviceatanangleof45°withthenormalofthedevicesurface,resultingininfraredmultiple-internal-reflectioninsidethedevice.Theinternalreflectionleadstopathlengthincreaseofinfraredlight,makingtheenhancementofinfraredabsorptionofthedevice.Anincreaseof11%inenergyconversionefficiencyhasbeenobtainedthroughtiltingthedevice.

  • 标签: 光电变换 单晶硅 红外吸收 MIR 转换效率
  • 简介:为了完成操纵者的软掌握,工作,钥匙是有与好性能滑动传感器。取决于弹性体和光电的元素在手里安装了,传感器转变在掌握的目标和机器人的手之间的滑动到电的信号,因此,滑动能被检测。它当目标是滑动时,愿望原因弹性体是微颤动的。基于颤动理论,动态理论,轻紧张理论和有弹性的变丑理论,发源是目标是机器人的手有的滑动加速relativingto的结论与光电的元素的产量的线性关系电压的微分,然后为滑动区分的模型被建立。

  • 标签: 滑动传感器 发送器 光电效应 振动检测
  • 简介:一个新奇的单个戒指的绝对的光柄编码器被在这篇论文学习传统的绝对的光柄编码器的编码原则设计。对编码器的取向算法的描述被指定,并且为向取向解释算术的一个例子被给它显示编码器的理论工作。获得电荷耦合器件的信号的视觉接口与VB被显示出,它提供可靠基础处理数据。编码器的测量精确的有效因素被分析。CLC数字TP212.14

  • 标签: 单环绝对光轴角编码器 设计 定位算法 测量精度
  • 简介:Thephotocurrent-voltagecharacteristicsandphotoelectricsensitivityofa-Si:Hsampleswithslitandcombelectrodesaremeasured.Amethodforcalculatingthechargeintensifyinggainfromthephotoelectricsensitivityisproposed.Theobtainedchargeintensifyinggainofa-Si:Hunderanelectricfieldof105V/cmthroughthismethodisashighas4.3×103.Thegenerationprocessofthechargeintensificationeffectina-Si:Hisdiscussedonthebasisoftheenergyleveldiagram.Andtheproductofelectron’smobilityanditslifetimeiscalculatedfromthemeasuredvaluesofthegains.

  • 标签: A-SI:H semiconductor CHARGE INTENSIFICATION EFFECT PHOTOELECTRIC