NF U44-203/A1-2005 混合肥料.钙肥和(或)镁肥.类型和技术条件

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【英文标准名称】:Coresmadeofsoftmagneticmaterials-Measuringmethods-Part3:Magneticpropertiesathighexcitationlevel
【原文标准名称】:软磁性材料制成的磁芯.测量方法.第3部分:高冲击水平的磁化特性
【标准号】:IEC62044-3-2000
【标准状态】:现行
【国别】:国际
【发布日期】:2000-12
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC51
【标准类型】:()
【标准水平】:()
【中文主题词】:磁芯;电力电子学;定义;计量学;充分磁导性;水平控制;消耗的能量;磁导率;电磁元件;功率范围;测量;材料;电气工程
【英文主题词】:Amplitudepermeability;Cores;Definitions;Dissipatedenergy;Electricalengineering;Levelcontrols;Magneticcomponents;Materials;Measurement;Metrology;Permeability;Powerelectronics;Powerrange
【摘要】:Thisstandardprovidesmeasuringmethodsforpowerlossandamplitudepermeabilityofmagneticcoresformingtheclosedmagneticcircuitsintendedforuseathighexcitationlevelsininductors,chokes,transformersandsimilardevicesforpowerelectronicsapplications.Themethodsgiveninthisstandardcancoverthemeasurementofmagneticpropertiesforfrequenciesrangingpracticallyfromd.c.to10MHz,andevenpossiblyhigher,forthecalorimetricandreflectionmethods.Theapplicabilityoftheindividualmethodstospecificfrequencyrangesisdependentonthelevelofaccuracythatistobeobtained.Themethodsinthisstandardarebasicallythemostsuitableforsine-waveexcitations.Otherperiodicwaveformscanalsobeused;however,adequateaccuracycanonlybeobtainedifthemeasuringcircuitryandinstrumentsusedareabletohandleandprocesstheamplitudesandphasesofthesignalsinvolvedwithinthefrequencyspectrumcorrespondingtothegiveninductionandfieldstrengthwaveformswithonlyslightlydegradedaccuracy.NOTEItmaybenecessaryforsomemagneticallysoftmetallicmaterialstofollowspecificgeneralprinciples,customaryforthesematerials,relatedtothepreparationofspecimensandprescribedcalculations.TheseprinciplesareformulatedinIEC60404-8-6.
【中国标准分类号】:L19
【国际标准分类号】:29_100_10
【页数】:61P.;A4
【正文语种】:英语


MIL-STD-1399/534 (NOTICE 1), MILITARY STANDARD: INTERFACE STANDARD FOR SHIPBOARD SYSTEMS (SECTION 534) AUXILIARY STEAM SERVICE, SURFACE SHIPS (22 AUG 1988) [NO S/S DOCUMENT].