【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


【英文标准名称】:StandardTestMethodforTensileStrengthofMonolithicAdvancedCeramicsatElevatedTemperatures
【原文标准名称】:高温下单值高级陶瓷抗拉强度的标准试验方法
【标准号】:ASTMC1366-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【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】:抗拉试验;高温;抗拉强度;高级陶瓷;百分比弯曲度
【英文主题词】:tensilestrength;percentbending;elevatedtemperatures;advancedceramic;tensiletesting
【摘要】:
【中国标准分类号】:Q32
【国际标准分类号】:
【页数】:
【正文语种】:英语