外文翻译--超声波工作原理.doc

TheworkingprincipleofultrasonicAdditionalonlineatscreeningultrasoundvibrationwave(mechanicalwaves),sothatacceptanceofultrafinepowderprecursorenormousultrasonicacceleration,therebyinhibitingtheadhesion,friction,flatdown,wedging,etc.Netblockingfactors,screeningefficiencyandimprovetheefficiencyofclearanceNet.UltrasonicProductDescriptionUltrasonicVibratingScreenis220V,50Hzor110V,60Hzpowerinto18kHzhigh-frequencyelectricalenergy,typeultrasonictransducer,turningitinto18kHzmechanicalvibration,toachievetheefficientscreeningandclearanceNetpurposes.Thesystemisatthebasisofthetraditionalshakersieveon-lineattheintroductionofalow-amplitude,highfrequencyultrasonicvibrationwave(mechanicalwaves),AdvancedMicroDevicesinordertoimprovethescreeningpropertiesofbodysegments.Particularlysuitableforhighvalue-addedfinesplitusers.TechnicalparametersofultrasonicMaximumoutputpowerofultrasound:200WeffOutputvoltage:900VeffmaximumMaximumOutputCurrent:1A(currentlimit)Fuse:100-120V:2x2.5Asloblo200-240V:2x1.25AslobloMode:continuousmode-100%dutyfactorpulsecycle1Hzmodulationmode50%dutyfactorPulsemode-10Hzmodulation70%dutyfactorLevelprotection:IP65PollutionLevel:2UltrasonicinstallationspecificationWeight:6.6kgElectricalconnection:200-240V±10%/1Amaximum100-120V±10%/2AmaximumFrequency:50/60HzAmbienttemperature:0-45°CInstallationcategory:IIJobLocation:interior,elevationisnothigherthan2000mUltrasonicVibratingScreenPowerUltrasonicVibratingScreenVibratingScreenultrasonicpowerarethecoretechnologytosolvetheproblemscreenmeshplughasplayedavitalrole,sothatshakersievingparticlescanbemoresophisticated,efficientscreening,awiderscopeofapplication.UltrasoundNetcom-toexpandtheuseofultrasoundsystemsUsingthesameultrasonicpowersupply,connectaclearNettransducer,ultrasonictransducerradiatingwiththeNetsplugcontact,therelativedisplacement,youcanplugthemouthofClearNetobjects.Withquicklyandefficiently,toimprovethequalityofclearanceNet,Netmouthdoesnotchangesize,nottoharmthesurfacequalityofwiremesh,etc.,canbewidelyusedscreeningtestsieveandwork.Modeleffectivescreendiameter(mm)PowerScreenSpecificationsTypetheeffectivediameterofscreen(mm)power(Kw)thespecificationofthescreenS49-6005200.37100-500meshS49-8007200.55100-500meshS49-10008901.1100-500meshS49-120010901.1100-500meshS49-150013902.2100-500meshThepowersourceiselectronicinstallationsessentialfunctionalmodule,itsperformancefitandunfitqualityimmediateinfluencetoelectronicinstallationstechnicalperformanceandreliability.Thisarticleintroducedthe25V/1Aswitchingpowersupplysstructure,theprincipleandthedesignprocessandsoon.Theentirepowersourcebytheinputcircuit,thelevelingcircuit,thefeedbackcircuit,theovervoltageprotectionelectriccircuit,theoverflowprotectioncircuit,fromrestorestheelectriccircuit,theoutputcircuitandsoon,butalsohasthesoftstartfunction.Theswitchingpowersupplyhastheefficiencytobehigh,thevolumeissmall,theweightislight,thereliabilityishigh,theloadsharesandsooneasilyaseriesofcharacteristics.Thistopicusestheswitchingmodeistheentirebridgeallcontrolstherectificationfilter,moreoverthepowersourcehasalsoutilizedthesoftswitchtechnology,causesitslosstoreduceobviously,theDC-DCtransformationusecutsthewaveboostedcircuittorealize,thestructureissimple,thetransferefficiencyishigh；Selectsthesmallbreakoverresistance,thehighshutterspeedP60N06tubefortheswitchingvalve,toselectthequickrecoverydioderectification,reducesthereversebreakovertime,reducestheloss.Hasrealizedthedesignrequirementsthroughtheexperimentalverificationelectriccircuitcompletelythebasicquota,andtheDC-DCconversionefficiencyachieves85%.Thecircuitdesignalsohasmanyinsufficiencies,eachdesigntargetalsowaitsforfurtherenhancing.超声波工作原理附加在筛网上的超声振动波（机械波），使超微细粉体接受巨大的超声加速度，从而抑制粘附、摩擦、平降、楔入等堵网因素，提高筛分效率和清网效率。超声波产品说明超声振动筛是将220V、50Hz或110V、60Hz电能转化为18KHz的高频电能，输入超声换能器，将其变成18KHz机械振动，从而达到高效筛分和清网的目的。该系统在传统的振动筛基础上在筛网上引入一个低振幅、高频率的超声振动波（机械波），以改善超微细分体的筛分性能。特别适合高附加值精细分体的用户使用。超声波技术参数最大超声输出功率：200Weff输出电压：最高900Veff最大输出电流：1A（限制电流）保险丝：100-120V：2x2.5Asloblo200-240V：2x1.25Asloblo工作模式：连续工作模式-100%占空系数循环脉动工作模式1Hz调制50%占空系数脉动工作模式-10Hz调制70%占空系数保护等级：IP65污染等级：2超声波安装规范重量：6.6kg电气连接：200-240V±10%/1A最高100-120V±10%/2A最高频率：50/60Hz环境温度：0-45°C最高相对空气温度:30C下80%安装类别：II工作位置：室内，海拔不高于2000m超声波振动筛电源超声波振动筛电源是超声波振动筛的技术核心，对解决筛网网孔堵塞问题起到了至关重要的作用，使振动筛能筛分的颗粒更精细，筛分的效率更高，适用范围更广。超声网通超声系统扩展使用用同一个超声电源，连接一个清网换能器，用超声换能器的辐射面与被堵塞的网面接触，相对位移,即可清除网口的堵塞物。具有快速高效、改善清网质量、不改变网口尺寸、不伤害丝网表面质量等优点,可广泛应用于试验筛和工作筛。型号有效筛分直径(mm)功率筛网规格Typetheeffectivediameterofscreen(mm)power(Kw)thespecificationofthescreenS49-6005200.37100-500meshS49-8007200.55100-500meshS49-10008901.1100-500meshS49-120010901.1100-500meshS49-150013902.2100-500mesh电源是电子设备的必不可少的功能模块，其性能的优劣直接影响到电子设备的技术性能和可靠性。本文介绍了25V/1A的开关电源的结构、原理和设计过程等。整个电源由输入电路、整流电路、反馈电路、过压保护电路、过流保护电路、自恢复电路、输出电路等，还具有软启动功能。开关电源具有效率高、体积小、重量轻、可靠性高、负载分担容易等一系列特点。本课题采用的开关方式是全桥全控整流滤波，而且电源还运用了软开关技术，使它的损耗明显降低，DC-DC变换使用斩波升压电路来实现，结构简单，转换效率高；选用小导通电阻、高开关速度的P60N06管为开关管、选用快速恢复二极管整流，减少反向导通时间，降低损耗。通过实验验证电路实现了设计要求的全部基本指标，并且DC-DC变换效率达到85%。电路设计还有很多不足，各项设计指标还有待进一步提高。