【英文标准名称】:TestMethodforAlternating-CurrentMagneticPropertiesofMaterialsatPowerFrequenciesUsingSheet-TypeTestSpecimens
【原文标准名称】:在电源频率下用薄钢板试样测试材料交流磁特性的方法
【标准号】:ANSI/ASTMA804/A804M-1999
【标准状态】:现行
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:磁学;材料;试验;特性
【英文主题词】:testing;materials;magnetism;properties
【摘要】:Thesetestmethodscoverthedeterminationofspecificcorelossandpeakpermeabilityofsinglelayersofsheet-typespecimenstestedwithnormalexcitationatafrequencyof50or60Hz.Note1-Thesetestmethodshavebeenappliedonlyatthecommercialpowerfrequencies,50and60Hz,butwithproperinstrumentationandapplicationoftheprinciplesoftestingandcalibrationembodiedinthetestmethods,theyarebelievedtobeadaptabletotestingatfrequenciesrangingfrom25to400Hz.Thesetestmethodsemploycalibrationproceduresthatprovidecorrelationwiththe25-cm[250-mm]Epsteintest.Therangeoftestinductionsisgovernedbythepropertiesofthetestspecimenandbytheavailableinstrumentsandotherequipmentcomponents.Normally,nonorientedelectricalsteelscanbetestedoverarangefrom8to16kG[0.8to1.6T]forcoreloss.Fororientedelectricalsteels,thenormalrangeextendsto18kG[1.8T].Maximuminductionsinpeakpermeabilitytestingarelimitedprincipallybyheatingofthemagnetizingwindingandtestsarelimitednormallytoamaximuma-cmagnetizingforceofabout150Oe[12000A/m].Thesetestmethodscovertwoalternativeproceduresasfollows:TestMethod1-Sections6to12TestMethod2-Sections13to19
【中国标准分类号】:H46
【国际标准分类号】:77_140_40
【页数】:
【正文语种】:英语