DIN EN 302752-2009 电磁兼容性和射频频谱物质(ERM)有源雷达目标增强器包含R&TTE指令3.2条款基本要求的协调EN标准
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【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-Activeradartargetenhancers-HarmonizedENcoveringtheessentialrequirementsofarticle3.2oftheR&TTEDirective(EndorsementoftheEnglishversionEN302752V1.1.1(2009-02)asGerma
【原文标准名称】:电磁兼容性和射频频谱物质(ERM)有源雷达目标增强器包含R&TTE指令3.2条款基本要求的协调EN标准
【标准号】:DINEN302752-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:通信技术;电磁兼容性;EMC;信息处理;雷达;雷达设备;无线电设备;无线电系统;目标;远程通信
【英文主题词】:Communicationtechnology;Electromagneticcompatibility;EMC;Informationprocessing;Radar;Radarequipment;Radioplants;Radiosystems;Targets;Telecommunication;Telecommunications
【摘要】:
【中国标准分类号】:L06
【国际标准分类号】:33_060_20
【页数】:2P.;A4
【正文语种】:德语
【英文标准名称】:Guidetoinsulationco-ordinationwithinlow-voltagesystemsincludingclearancesandcreepagedistancesforequipment
【原文标准名称】:包括设备间距和爬电距离的低压系统内的绝缘配合指南
【标准号】:BSPD6499-1981
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforreverberationrooms(ISO3741:1999,includingCor1:2001);EnglishversionofDINENISO3741:2009-11
【原文标准名称】:声学.用声压测定噪声源声音功率级.回响室中的精密方法(ISO3741:1999,包括勘误11:2001),德文版本ENISO3741:2009
【标准号】:DINENISO3741-2009
【标准状态】:作废
【国别】:德国
【发布日期】:2009-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustics;Airbornenoiseemitted;Calibration;Clay;Concentration;Definitions;Determination;Earprotectors;Environment;Filters;Frequencies;Handling;Hearingabilitytests;Humidity;Indications;Information;Loudnesslevels;Loudspeakers;Machines;Mathematicalcalculations;Measurement;Measuringenvironment;Measuringincertainity;Measuringinstruments;Measuringrooms;Measuringtechniques;Microphones;Noise;Noise(environmental);Noisemeasurements;Noisesources;Observation;Operatingconditions;Position;Powerlevels;Precision;Reverberation;Reverberationroommethod;Reverberationrooms;Rooms;Safetyofmachinery;Sound;Soundabsorption;Soundintensity;Soundlevel;Soundlevels;Soundpower;Soundpressure;Soundsources;Specification(approval);Standarddeviation;Surfaces;Temperature;Testing;Volume(sound)
【摘要】:1.1ThisInternationalStandardspecifiesadirectmethodandacomparisonmethodfordeterminingthesoundpowerlevelthatwouldbeproducedbyasourceoperatinginanenvironmentatstandardmeteorologicalconditionscorrespondingtoacharacteristicimpedanceofpc=400N.s/m3(wherepisthedensityofairandcisthespeedofsound).Itspecifiestestroomrequirements,sourcelocationandgeneralrulesforoperatingconditions,instrumentationandtechniquesforobtaininganestimateofmean-squaresoundpressurelevelsfromwhichthesoundpowerlevelsofthesourceinoctaveorone-third-octavebandsarecalculatedwithagrade1accuracy.Thequantitiestobemeasuredaretime-averagedsoundpressurelevelsinfrequencybands.Thequantitiestobedeterminedaresoundpowerlevels,A-weightedandinfrequencybands.Otherquantities,whichareoptional,aresoundpowerlevelswithotherfrequencyweightingscalculatedfromthemeasurementsinfrequencybands.Thisstandarddoesnotprovidethemeanstodeterminedirectivityandtemporalvariationofsoundfromasource.Ingeneral,thefrequencyrangeofinterestincludestheone-third-octavebandswithmidbandfrequenciesfrom100Hzto10000Hz.GuidelinesfortheapplicationofthespecifiedmethodsinanextendedfrequencyrangeinrespecttolowerfrequenciesaregiveninannexC.ThisInternationalStandardisnotapplicabletofrequencyrangesabovethe10O00Hzone-third-octaveband.ForhigherfrequenciestheuseofmethodsgiveninISO9295isrecommended.1.2ThemethodspecifiedinthisInternationalStandardissuitableforsteadynoisewithbroad-band,narrow-bandanddiscrete-frequencycomponentsasdescribedinISO12001.Thenoisemaybeemittedfromadevice,machine,componentorsub-assembly.ThisInternationalStandardisapplicabletonoisesourceswithvolumeswhicharepreferablynotgreaterthan2%ofthevolumeofthereverberationroomusedforthetest.Forsourceswithvolumesgreaterthan2%oftheroomvolume,thestandarddeviationsgivenbyTable2couldbeexceeded.
【中国标准分类号】:
【国际标准分类号】:17_140_01
【页数】:43P.;A4
【正文语种】:英语
