DIN EN 61300-2-5-2003 光纤互连器件和无源元件.基本试验和测量程序.第2-5部分:试验.扭绞
时间:2024-05-07 17:17:32 来源: 标准资料网 作者：标准资料网 阅读：8238
【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Basictestandmeasurementprocedures-Part2-5:Tests,Torsion/twist(IEC61300-2-5:2002);GermanversionEN61300-2-5:2002
【原文标准名称】:光纤互连器件和无源元件.基本试验和测量程序.第2-5部分:试验.扭绞
【标准号】:DINEN61300-2-5-2003
【标准状态】:作废
【国别】:德国
【发布日期】:2003-06
【实施或试行日期】:2003-06-01
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:无源;抗扭试验;扭转试验;连接工艺;测量技术;元部件;电插头;扭转;纤维光学;光波导;电气工程;试验
【英文主题词】:Components;Connectiontechnology;Electricplugs;Electricalengineering;Fibreoptics;Glassfibres;Measuringtechniques;Opticalwaveguides;Passive;Testing;Torsion;Torsiontest;Torsiontests
【摘要】:Thisstandardestablishesatesttodeterminetheabilityofthecableattachmentelementofthedeviceundertesttowithstandtorsionalloadswhileundertension,asmightbeexperiencedduringinstallationandnormalservice.Thescopeofthetestalsoincludesthoseelementsdesignedforribboncables.#,,#
【中国标准分类号】:M33
【国际标准分类号】:33_180_20
【页数】:9P.;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforMeasuringExtremeHeat-TransferRatesfromHigh-EnergyEnvironmentsUsingaTransient,Null-PointCalorimeter
【原文标准名称】:用瞬变零点量热器测量高能环境的超级传热速率的标准试验方法
【标准号】:ASTME598-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E21.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:calorimeter;convective;heatflux;heatfluxgage;null-point;radiative;transienttemperature;Calorimeter--aerospaceapplications;Convectiveenergy;Extremeheattransferrates;Heatflux;Heatingtests--aerospacematerials;Heattransfer;Trans
【摘要】:Thepurposeofthistestmethodistomeasureextremelyhighheat-transferratestoabodyimmersedineitherastaticenvironmentorinahighvelocityfluidstream.Thisisusuallyaccomplishedwhilepreservingthestructuralintegrityofthemeasurementdeviceformultipleexposuresduringthemeasurementperiod.Heat-transferratesrangingupto2.84x00D7;102MW/m2(2.5x00D7;104Btu/ft2-sec)(7)havebeenmeasuredusingnull-pointcalorimeters.Useofcoppernull-pointcalorimetersprovidesameasuringsystemwithgoodresponsetimeandmaximumruntimetosensorburnout(orablation).Null-pointcalorimetersarenormallymadewithsensorbodydiametersof2.36mm(0.093in.)press-fittedintothenoseofanaxisymmetricmodel.Sourcesoferrorinvolvingthenull-pointcalorimeterinhighheat-fluxmeasurementapplicationsareextensivelydiscussedinRefs(3-7).Inparticular,ithasbeenshownbothanalyticallyandexperimentallythatthethicknessofthecopperabovethenull-pointcavityiscritical.Ifthethicknessistoogreat,thetimeresponseoftheinstrumentwillnotbefastenoughtopickupimportantflowcharacteristics.Ontheotherhand,ifthethicknessistoosmall,thenull-pointcalorimeterwillindicatesignificantlylarger(andtimedependent)valuesthantheinputorincidentheatflux.Therefore,allnull-pointcalorimetersshouldbeexperimentallycheckedforpropertimeresponseandcalibrationbeforetheyareused.Althoughacalibrationapparatusisnotverydifficultorexpensivetofabricate,thereisonlyoneknownsystempresentlyinexistence(6and7).Thedesignofnull-pointcalorimeterscanbeaccomplishedfromthedatainthisdocumentation.However,fabricationofthesesensorsisadifficulttask.Sincethereisnotpresentlyasignificantmarketfornull-pointcalorimeters,commercialsourcesofthesesensorsarefew.Fabricationdetailsaregenerallyregardedasproprietaryinformation.Someusershavedevelopedmethodstofabricatetheirownsensors(7).Itisgenerallyrecommendedthatthecustomershouldrequestthesuppliertoprovidebothtransientexperimentaltimeresponseandcalibrationdatawitheachnull-pointcalorimeter.Otherwise,theendusercannotassumethesensorwillgiveaccurateresults.Interpretationofresultsfromnull-pointcalorimeterswill,ingeneral,bethesameasforotherheat-fluxsensorsoperatingonthesemi-infinitesolidprinciplesuchascoaxialsurfacethermocouplesandplatinumthin-filmgages.Thatis,theeffectsofsurfacechemicalreactions,gradientsinthelocalflowandenergyfields,thermalradiation,andmodelalignmentrelativetotheflowfieldvectorwillproducethesamequalitativeresultsaswouldbeexperiencedwithothertypesofheatfluxsensors.Inaddition,signalconditioninganddataprocessingcansignificantlyinfluencetheinterpretationofnull-pointcalorimeterdata.1.1Thistestmethodcoversthemeasurementoftheheat-transferrateortheheatfluxtothesurfaceofasolidbody(testsample)usingthemeasuredtransienttemperatureriseofathermocouplelocatedatthenullpointofacalorimeterthatisinstalledinthebodyandisconfiguredtosimulateasemi-infinitesolid.Bydefinitionthenullpointisauniquepositionontheaxialcenterlineofadisturbedbodywhichexperiencesthesametransienttemperaturehistoryasthatonthesurfaceofasolidbodyintheabsenceofthephysicaldisturbance(hole)forthesameheat-fluxinput.1.2Null-pointcalorimetershavebeenusedtomeasurehighconvectiveorradiantheat-transferratestobodiesimmersedinbothflowingandstaticenvironme......
【中国标准分类号】:A54
【国际标准分类号】:17_200_10
【页数】:10P.;A4
【正文语种】:英语
【英文标准名称】:Buildingvalves-Waterpressurereducingvalvesandcombinationwaterpressurereducingvalves-Requirementsandtests.
【原文标准名称】:建筑物阀门.供水减压阀和复合供水减压阀.要求和试验
【标准号】:NFP43-035-2000
【标准状态】:现行
【国别】:法国
【发布日期】:2000-12-01
【实施或试行日期】:2000-12-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:J16
【国际标准分类号】:23_060_40;91_140_60
【页数】:20P;A4
【正文语种】:其他