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【英文标准名称】:Superconductivity-Part1:Criticalcurrentmeasurement-DCcriticalcurrentofCu/Nb-Ticompositesuperconductors
【原文标准名称】:超导体第1部分:临界电流测量铜/铌-钛复合超导体的临界直流电流
【标准号】:IEC61788-1-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC90
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;铌;电流测量;铜;钛;测量;超导性;超导体;临界数据
【英文主题词】:Copper;Criticalcurrent;Criticalitydata;Currentmeasurement;Directcurrent;Electricalengineering;Measurement;Niobium;Superconductivity;Superconductors;Titanium
【摘要】:ThispartofIEC61788coversatestmethodforthedeterminationofthed.c.criticalcurrentofCu/Nb-Ticompositesuperconductorsthathaveacopper/superconductorratiolargerthan1.Thismethodisintendedforusewithsuperconductorsthathavecriticalcurrentslessthan1000Aandn-valueslargerthan12,understandardtestconditionsandatmagneticfieldslessthanorequalto0,7oftheuppercriticalmagneticfield.Thetestspecimenisimmersedinaliquidheliumbathduringtesting.TheCu/Nb-Ticompositetestconductorhasamonolithicstructurewitharoundorrectangularcross-sectionalareathatislessthan2mm.Thespecimengeometryusedinthistestmethodisaninductivelycoiledspecimen.Deviationsfromthistestmethodthatareallowedforroutinetestsandotherspecificrestrictionsaregiveninthisstandard.Cu/Nb-Ticonductorswithcriticalcurrentsabove1000Aorcross-sectionalareasgreaterthan2mmcouldbemeasuredwiththepresentmethodwithananticipatedreductioninprecisionandamoresignificantself-fieldeffect(seeannexB).Other,morespecialized,specimentestgeometriesmaybemoreappropriateforlargerconductortestingwhichhavebeenomittedfromthispresentstandardforsimplicityandtoretainprecision.Thetestmethodgiveninthisstandardisexpectedtoapplytoothersuperconductingcompositewiresaftersomeappropriatemodifications.
【中国标准分类号】:L47
【国际标准分类号】:29_050
【页数】:43P;A4
【正文语种】:英语