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IEEE C 63.4-2003 9kHz-40kHz范围内低压电气设备和电子设备所发射的无线电噪声的测量方法

作者:标准资料网 时间:2024-05-13 00:16:14  浏览:8359   来源:标准资料网
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【英文标准名称】:Methodsofmeasurementofradio-noiseemissionsfromlow-voltageelectricalandelectronicequipmentintherangeof9kHzto40GHz
【原文标准名称】:9kHz-40kHz范围内低压电气设备和电子设备所发射的无线电噪声的测量方法
【标准号】:IEEEC63.4-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国电气电子工程师学会(US-IEEE)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:衰减;导电的;定义;电场;电气工程;电气设备;电子工程;电子仪器;排放测量;音域测量;低电压;低压电器;磁场;测量;测量方法;无线电干扰测量
【英文主题词】:Attenuations;Conducting;Definitions;Electricfields;Electricalengineering;Electricalequipment;Electronicengineering;Electronicinstruments;Emissionmeasurement;Fieldmeasurement;Lowvoltage;Low-voltageequipment;Magneticfields;Measurement;Methodsformeasuring;Radiointerferencemeasurements
【摘要】:ThisstandardspecifiesU.S.consensusstandardmethods,instrumentation,andfacilitiesformeasurementofradio-frequency(RF)signalsandnoiseemittedfromelectricalandelectronicdevicesinthefrequencyrange9kHzto40GHz.Itdoesnotincludegenericnorproduct-specificemissionlimits.Wherepossible,thespecificationshereinareharmonizedwithothernationalandinternationalstandardsusedforsimilarpurposes.Measurementmethodsareincludedforradiatedandline-conductedemissionsthatcanbegeneratedbyavarietyofdevices,asdescribedin1.2.Definitionsareprovidedfortermsandphrasescontainedinthetext,inwhichthewordsdonotrepresentobviousorcommonusage.Measurementinstrumentation,facilities,andtestsitesarespecifiedandcharacterized,includingOpenAreaTestSites(OATS)andRFabsorber-lined,metalchambersusedforradiatedemissionmeasurement.Transverseelectromagnetic(TEM)wavedevicesusedforradiatedemissionmeasurementaretreatedinnormativeAnnexL.TherequirementsofAnnexL,whensuchtestsareperformed,shalltakeprecedenceinthisstandard.Inmostcases,measurementinstrumentationandcalibrationrequirementsareonlygenerallycharacterizedindeferencetostandardsdedicatedtothesesubjects,whichshouldbeusedinconjunctionwiththisstandard.Requirementsforoperationoftestsamplesduringmeasurementsarepresentedfordevicesingeneral,aswellasforspecifictypesofdevicesthatarefrequentlymeasured.Specificrequirementsforemissiontestdatarecordingandreportingarepresentedwithreferencetogeneralrequirementscontainedindocumentsdedicatedtostandardlaboratorypractices,whichalsoshouldbeusedinconjunctionwiththisstandard.Themaintextisaugmentedbyaseriesofannexes,whichprovidedetailsforcertainmeasurementmethodsandfacilities,aswellasstep-by-stepproceduresformeasurementofemissionsfromspecifictypesofdevices.AnnexTprovidesanindexofmaintextclausesbydevicetype.NOTE--AnnexAthroughAnnexK,AnnexM,andAnnexNareinformative.
【中国标准分类号】:L06
【国际标准分类号】:33_100_20
【页数】:144P.;A4
【正文语种】:英语


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Product Code:SAE J1045
Title:Instrumentation and Techniques for Vehicle Refueling Emissions Measurement (Cancelled Oct 2002)
Issuing Committee:Sae Ic Powertrain Steering Committee
Scope: This SAE Recommended Practice describes a procedure for measuring the hydrocarbon emissions occurring during the refueling of passenger cars and light trucks. It can be used as a method for investigating the effects of temperatures, fuel characteristics, etc., on refueling emissions in the laboratory. It also can be used to determine the effectiveness of evaporative emissions control systems to control refueling emissions. For this latter use, standard temperatures, fuel volatility, and fuel quantities are specified.【英文标准名称】:StandardSpecificationforMagnesiumAlloysinIngotFormforSandCastings,PermanentMoldCastings,andDieCastings
【原文标准名称】:砂型铸件、硬模铸件和压模铸件用镁合金锭的标准规范
【标准号】:ASTMB93/B93M-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:铸锭;镁合金;镁;砂型铸造;静压铸件;铸件;合金;压模铸造;有色金属;金属
【英文主题词】:castings;diecasting;magnesiumalloys;sandcasting;magnesium;metals;ingots;staticalcasting;non-ferrousmetals;alloys
【摘要】:
【中国标准分类号】:H61
【国际标准分类号】:77_150_20
【页数】:3P;A4
【正文语种】:英语



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