【英文标准名称】:ActiveImplantableMedicalDevices-ElectromagneticCompatibility-EMCTestProtocolsforImplantableCardiacPacemakersandImplantableCardioverterDefibrillators
【原文标准名称】:激活性可植入医疗器件.电磁兼容性.用于可植入心脏起搏器和心脏除颤器的电磁兼容性试验协议
【标准号】:ANSI/AAMIPC69-2000
【标准状态】:作废
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:去纤颤器;电磁兼容性;医疗设备;医学科学;医疗技术学;起搏器
【英文主题词】:Defibrillators;Electromagneticcompatibility;Medicalequipment;Medicalsciences;Medicaltechnology;Pacemakers
【摘要】:
【中国标准分类号】:L51
【国际标准分类号】:11_040_40;33_100_01
【页数】:
【正文语种】:英语


【英文标准名称】:Opticalfibres-Part1-41:Measurementmethodsandtestprocedures-Bandwidth
【原文标准名称】:光纤.第1-41部分:测量方法和试验规程.频带宽度
【标准号】:IEC60793-1-41-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-08
【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/SC86A
【标准类型】:()
【标准水平】:()
【中文主题词】:频带宽度;定义;尺寸规格;电气工程;光纤;频率;频率范围;测量;测量技术;动量;多模纤维;光学测量;光波导;特性;脉冲失真;抽样方法;试验;试验装置
【英文主题词】:Bandwidths;Definitions;Dimensions;Electricalengineering;Fibreoptics;Frequencies;Frequencyranges;Measurement;Measuringtechniques;Momentum;Multimodefibres;Opticalmeasurement;Opticalwaveguides;Properties;Pulsedistortion;Samplingmethods;Testing;Testingdevices
【摘要】:ThispartofIEC60793describesthreemethodsfordeterminingandmeasuringthemodalbandwidthofmultimodeopticalfibres(seeIEC60793-2-10,IEC60793-30seriesandIEC60793-40series).Thebasebandfrequencyresponseisdirectlymeasuredinthefrequencydomainbydeterminingthefibreresponsetoasinusoidalymodulatedlightsource.Thebasebandresponsecanalsobemeasuredbyobservingthebroadeningofanarrowpulseoflight.Thecalculatedresponseisdeterminedusingdifferentialmodedelay(DMD)data.Thethreemethodsare:?MethodA–Timedomain(pulsedistortion)measurement?MethodB–Frequency-domainmeasurement?MethodC–Overfilledlaunchmodalbandwidthcalculatedfromdifferentialmodedelay(OMBc)MethodsAandBcanbeperformedusingoneoftwolaunches:anoverfilledlaunch(OFL)conditionorarestrictedmodelaunch(RML)condition.MethodCisonlydefinedforA1a.2(andA1a.3inpreparation)multimodefibreandusesaweightedsummationofDMDlaunchresponseswiththeweightscorrespondingtoanoverfilledlaunchcondition.Therelevanttestmethodandlaunchconditionshouldbechosenaccordingtothetypeoffibre.
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:64P.;A4
【正文语种】:英语