EN 300407-2001 固定无线电系统.点对点设备.55GHz数字信号传输用数字无线电系统参数
作者:标准资料网 时间:2024-05-19 20:46:22 浏览:9295
来源:标准资料网
【英文标准名称】:Fixedradiosystems-Point-to-pointequipment-Parametersfordigitalradiosystemsforthetransmissionofdigitalsignalsoperatingat55GHz(EndorsementoftheEnglishversionEN300407V1.3.1(2001-08)asGermanStandard)
【原文标准名称】:固定无线电系统.点对点设备.55GHz数字信号传输用数字无线电系统参数
【标准号】:EN300407-2001
【标准状态】:现行
【国别】:
【发布日期】:2002-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电中继系统;传输技术;复接;信号传输;电气工程;数字无线电链路;电信;无线电工程;数字信号;规范(验收);视频信号;远程通信
【英文主题词】:Digitalradiolinks;Digitalsignals;Electricalengineering;Multiplexing;Radioengineering;Radio-relaysystems;Signaltransmission;Specification(approval);Telecommunication;Telecommunications;Transmissiontechnique;Videosignals
【摘要】:
【中国标准分类号】:M36
【国际标准分类号】:33_060_30
【页数】:1P.;A4
【正文语种】:英语
【英文标准名称】:Fixedcapacitorsforuseinelectronicequipment-Part21-1:Blankdetailspecification:Fixedsurfacemountmultilayercapacitorsofceramicdielectric,Class1-AssessmentlevelEZ
【原文标准名称】:电子设备用固定电容器.第21-1部分:空白详细规范:1级陶瓷介质的表面安装多层固定电容器.评定等级EZ
【标准号】:BSEN60384-21-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2005-01-19
【实施或试行日期】:2005-01-19
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:评定等级;空白格式;电容器;陶瓷电容器;陶瓷;检验;片式电容器;芯片;元件;控制图;详细规范;介质材料;尺寸;直流电压;电气工程;电子工程;电子设备及元件;电子仪器;架设(施工作业);固定电容器;作标记;测量;测量技术;多层电容器;塑料电容器;性能;质量;质量评定;质量评定程序;质量保证;质量保证体系;额定电压;半导体器件;表面安装设备;规范(验收);表面安装;测试;测试条件
【英文主题词】:Appraisallevel;Assessmentlevel;Blankforms;Capacitors;Ceramiccapacitors;Ceramics;Checks;Chipcapacitors;Chips;Components;Controlcharts;Detailspecification;Dielectricmaterials;Dimensions;Directvoltage;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Electronicinstruments;Erecting(constructionoperation);Fixedcapacitors;Inspection;Marking;Measurement;Measuringtechniques;Multilayercapacitors;Plasticscapacitors;Properties;Quality;Qualityassessment;Qualityassessmentprocedures;Qualityassurance;Qualityassurancesystems;Ratedvoltage;Semiconductordevices;SMD;Specification(approval);Surfacemounting;Testing;Testingconditions
【摘要】:Fixedcapacitorsforuseinelectronicequipment-Part21-1:Blankdetailspecification:Fixedsurfacemountmultilayercapacitorsofceramicdielectric,Class1—AssessmentlevelEZ1Generaldata2Inspectionrequirements
【中国标准分类号】:L11
【国际标准分类号】:31_060_10
【页数】:18P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMeasuringPavementMacrotextureDepthUsingaVolumetricTechnique
【原文标准名称】:用砂石体积测量法测量路面宏观结构深度的标准试验方法
【标准号】:ASTME965-1996(2006)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E17.23
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:额定值;道路建筑;路面(道路);承重面的表面修饰;施工材料;建筑;砂;深度;材料;试验;精整;表面
【英文主题词】:
【摘要】:Thistestmethodissuitableforfieldteststodeterminetheaveragemacrotexturedepthofapavementsurface.Theknowledgeofpavementmacrotexturedepthservesasatoolincharacterizingthepavementsurfacetexture.Whenusedinconjunctionwithotherphysicaltests,themacrotexturedepthvaluesderivedfromthistestmethodmaybeusedtodeterminethepavementskidresistancecapabilityandthesuitabilityofpavingmaterialsorfinishingtechniques.Whenusedwithothertests,careshouldbetakenthatalltestsareappliedatthesamelocation.Improvementsinpavementfinishingpracticesandmaintenanceschedulesmayresultfromuseofthistestmethod.Thetexturedepthmeasurementsproducedusingthistestmethodareinfluencedbypavementmacrotexturecharacteristicsandnotsignificantlyaffectedbypavementmicrotexture.Pavementaggregateparticleshape,size,anddistributionaretexturefeaturesnotaddressedinthisprocedure.Thistestmethodisnotmeanttoprovideacompleteassessmentofpavementsurfacetexturecharacteristics.Thepavementmacrotexturedepthvaluesmeasuredbythistestmethod,withtheequipmentandproceduresstatedherein,donotnecessarilyagreeorcorrelatedirectlywithothertechniquesofsurfacetexturemeasurements.Thistestmethodisalsosuitableforresearchanddevelopmentpurposes,wheredirectcomparisonsbetweenpavementsurfacesaretobemadewithinthesametestprogram.Note28212;Thepavementsurfacetobemeasuredusingthistestmethodmustbedryandfreeofanyconstructionresidue,surfacedebris,andlooseaggregateparticlesthatwouldbedisplacedorremovedduringnormalenvironmentalandtrafficconditions.p>1.1Thistestmethoddescribesaprocedurefordeterminingtheaveragedepthofpavementsurfacemacrotexture(see3.1)(1)bycarefulapplicationofaknownvolumeofmaterialonthesurfaceandsubsequentmeasurementofthetotalareacovered.Thetechniqueisdesignedtoprovideanaveragedepthvalueofonlythepavementmacrotextureandisconsideredinsensitivetopavementmicrotexturecharacteristics.1.2Theresultsobtainedusingthisproceduretodetermineaveragepavementmacrotexturedepthsdonotnecessarilyagreeorcorrelatedirectlywiththoseobtainedbyotherpavementmacrotexturemeasuringmethods(1-5).1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandardThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P66
【国际标准分类号】:93_080_20
【页数】:3P.;A4
【正文语种】:
