EIA-3628E电子连接器振动测试方法-中英

电子连接器振动测试方法(£1人-364-28£).圉庭TOC\o"1-5"\h\zVIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS一CONTENTS目录Introduction简介1-2Scope范围1-2Object主旨1-2Definitions定义1-2Testresources测试程序2-3Testspecimen测试样品3-3Testprocedure测试程序4-4TestconditionsI,II,IIIandIV4-4TestconditionsV,VIandVII测试条件V、VI和VII4-10Detailstobespecified细节规定5-15Testdocumentation测试报告6-16Table1Vibrationconditions5ValuesfortestconditionV13ValuesfortestconditionVI14ValuesfortestconditionVII15Figure1Mountingaxisdefinitions3Vibrationtestcurves-highfrequency(displacementinmm)7Vibrationtestcurves-highfrequency(displacementininches)8TestconditionV,randomvibrationtestcurveenvelope12TestconditionVI,randomvibrationtestcurveenvelope13TestconditionVII,randomvibrationtestcurveenvelope14VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETSIntroduction简介Scope范围Thestandardtestproceduredetailsamethodtoassesstheabilityofelectricalconnectorcomponentstowithstandspecifiedseveritiesofvibration.此试验标准详述了一种用于电子连接器振动试验的标准方法，用以评估电子连接器及其组件承受特定强度振动的能力。Object主旨Theobjectofthistestistodeterminetheeffectsofvibrationwithinthepredominantorrandomvibrationfrequencyrangesandmagnitudesthatmaybeencounteredduringthelifeoftheconnector.此试验的是用来模拟产品在使用过程中可能遭受到的主要频段或随机振动频段范围内及其振动幅度的环境，以此验证对产品性能的影响情况.Definitions定义Axis轴向Thefollowingmountingaxisdefinitionsshallbeemployedduringtheperformanceofthistest.Figure1indicatesapictorialviewoftheaxisdefinitions.Thereferencingdocumentshallindicatethefixturingrequiredortheaxisdefinitionsifdifferentthanasstatedinfigure1.Axisdefinitionsforsymmetrical,squareandafree”connectorsshallbedefinedSpecifeattatail在执行振动测试时，轴向需明确定义清楚。图1标示了各轴向的定义。若实际测试所使用的轴向与图1不同，则在相关参考文件中需对试验装置要求及轴向进行定义。对于具有对称性，方形及不规则的连接器的轴向的定义也要在规范细目中详加定义。X-axisX-轴Alongthelongitudinallengthofthetestsample沿着试件的纵向长度方向。Y-axisY-轴Theaxisperpendiculartothelongitudinallengthofthesample(transversedirection).垂直于试件纵向长度的方向(横向方向)。Z-axisZ-轴Theaxisperpendiculartothefixtureseatingplaneattachedtothetesttable.垂直于固定治具的测试平台的方向Thetermgn术语gnThistermistheSIunitforthestandardaccelerationduetotheearth,sgravity,whichitselfvarieswithaltitudeandgeographiclatitude.gn是国际单位，表示标准的重力加速度，其本身随着高度和地理位置而变化。NOTE—Inthisstandardthevalueofgnis9.81m/s2.备注：在这个标准中gn取9.81m/s2Testresources测试程序Equipment设备Themonitoringtransducershallbecalibratedagainstastandardtransducerhavinganaccuracyof±2%.Thevibrationsystemconsistingofthevibrationmachine,togetherwithitsauxiliarytestequipment,shallbecapableofgeneratingeitherasinusoidalorrandomexcitation.传感器需由标准传感器(精度在±2%以内)进行校准。振动系统包含有振动机及辅助测试设备，整个系统应能产生正弦或随机振动。TestequipmentforrandomvibrationshallproducerandomexcitationthatpossessesaGaussian(normal)amplitudedistribution,exceptthattheaccelerationmagnitudesofthepeakvaluesmaybelimitedtoaminimumofthreetimestherms[three-sigma(3a)limits].用于随机振动的测试设备所产生的随机振动的振动幅度应符合高斯分布，但加速度的峰值可限止到最小为3倍的均方根值(区间为3。)。Testspecimen测试样品Avibrationtestsampleshallbeafullywiredconnectorconsistingofoneofthefollowing,asapplicable;振动试验的样品应是完全连接好连接器，且包括下列条件中任一条适用的条件：Aconnectorpluganditsmatingconnectorreceptacle.连接器的公头及与其相对应的母头；Aprintedcircuitconnectorreceptacleanditsmatingconnectorboard(s).印刷电路板及与其相对应的连接器；电子连接器振动测试方法（£1人-364-28£）.圉庭VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKET^」Anintegral,functionalconnectorassembly.已装配好且具完整功能的组合件。Eachtestsampleshallbepreparedwithwireandothermaterialsorprocesses,simulatingapplicationassemblyofthesample.Ifnormalconnectormatingisdependentuponforcesexternaltotheconnector,thensuchforcesandmountingarrangementshallbeascloselyduplicatedaspossible（example:printedcircuitconnectors）.Ifmatingisachievedwithnormallockingmeans,thenonlynormallockingmeansshallbeused.每一试验样品都应准备好导线及其它材料，或作好模拟连接器的现场组装等工作。若连接器的连接方式需要依靠外力，那么这些外力与连接方式应尽可能模拟实际的状况（例如：印刷电路连接器）。若是通过的锁扣方式连接，那么也需采用相同的方式连接。Methodofmounting安装方法TestconditionsI,II,IIIandIV（sinusoidalevaluationconditions）试验条件I，II，III和试验条件IV（正弦振动测试条件）Thespecimenshallbeattachedtoafixturecapableoftransmittingthevibrationconditionsspecified.Thetestfixtureshallbedesignedsothatresonantvibrationinherentinthefixturewithinthefrequencyrangespecifiedforthetestshallbeminor.Themagnitudeoftheappliedvibrationshallbemonitoredonthetestfixturenearthespecimenmountingpoints.Thetestspecimenshallbemountedrigidlytothetestfixtureasspecifiedandshallsimulateascloselyaspossiblethenormalmountingofthespecimen.Aminimumof200mm（approx8in）ofwireorcableshallbeunsupportedonbothendsoftheconnector.Forspecimenswithattachedbrackets,oneofthevibration-testdirectionsshallbeparalleltothemountingsurfaceofthebracket.Vibrationinputshallbemonitoredonthemountingfixtureintheproximityofthesupportpointsofthespecimen.连接器试验样品应固定到能传递规定振动条件的夹具上，夹具的设计应能保证它的固有共振频率在试验所规定的频率范围内达到最小。在试验夹具上接近样品的地方监控所施加的振动强度。样品安装应尽可能模拟实际使用状况。在连接器尾端至少有200毫米（约8英寸）长的导线末被固定。对于带有安装托架的样品，振动试样的一个方向应平行于托架的安装面。在靠近样品支撑点的地方监控振动输入。TestconditionsV,VIandVII（randomexcitationconditions）试验条件V，VI和VII（随机振动测试条件）Thespecimenshallbemountedasspecified.Theorientationofthespecimenordirectionofapplicationoftheappliedvibrationmotionshallbespecifiedinoneormoredirections.Iftheorderofapplicationofthedifferentdirectionsiscritical,italsoshallbespecified.Anyspecialtestfixturesorjigsrequiredtorunthetestshallbespecifiedinsufficientdetailtoassurereproducibilityoftheinputmotionappliedtothespecimen.Thesedetailsshallincludethedimensions,thematerials,temper,etc.,asapplicable.按规定的方法安装样品，试验样品的位置或施加振动的方向应规定朝一个或一个以上的方向。如果朝不同方向施加的次序很重要，那就应该规定不同方向的先后顺序。对于进行试验所要求的任何特殊试验夹具或机架应充分详细规定，以保证施加到样品的输入量具有重复性，这些详细的规定包括尺寸、材料和温度等。Testprocedure测试程序Testsandmeasurementsbefore,duringandaftervibrationshallbeasspecifiedinthereferencingdocument.应在相关的参考文件中规定振动之前，之中或之后的各种测试项目。TestconditionsI,II,IIIandIV测试条件i、n、in、wVIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS—"Electricalloadanddiscontinuity电负载及其不连续性Unlessotherwisespecifiedinthereferencingdocument,theelectricalloadconditionshallbe100milliamperes,maximumforallcontacts.除非另有规定，施加电负载时，通过端子的电流最大不得超过100mA。Unlessotherwisespecifiedinthereferencingdocument,nodiscontinuitiesofonemicrosecondorgreaterdurationareallowed.Adetectorcapableofdetectingthespecifieddiscontinuityshallbeused.除非另有规定，试验过程中应使用合适的仪器来监控电路的电气不连续性,不允许出现大于1^s的断路现象。Vibrationconditions振动条件Vibrationconditionsshallbeinaccordancewithtable1,asapplicable.表1列出适用的振动条件。Table1-VibrationconditionsTestconditionsFrequencyrange,HzPeaklevelgum/s2ILow-10to55IIHigh-10to5001098.1IIIHigh-10to2,00015147.1IVHigh-10to2,00020196.1Resonance共振Acriticalresonantfrequencyisthatfrequencyatwhichanypointonthespecimenisobservedtohaveamaximumamplitudemorethantwicethatofthesupportpoints.Whenspecified,resonantfrequenciesshallbedeterminedeitherbymonitoringparameterssuchascontactopening,orbyuseofresonance-detectinginstrumentation.所谓的临界共振频率是指在该频率时观测到的试验样品上任一点的最大振幅将比支撑点的振幅的2倍还要大.当有规定时，共振频率应采用监控参数的方法，或采用共振检测仪的方法来确定共振频率。TestconditionI测试条件IThespecimensshallbesubjectedtoasimpleharmonicmotionhavinganamplitude1.52mm(0.06in)doubleamplitude(maximumtotalexcursion),thefrequencybeingvarieduniformlybetweentheapproximatelimitsof10Hzand55Hz.Theentirefrequencyrange,from10Hzto55Hzandreturnto10Hz,shallbetraversedinapproximately1minute.Unlessotherwisespecified,thismotionshallbeappliedfor2hoursineachofthreemutuallyperpendiculardirections(totalof6hours).Ifapplicable,thistestshallbemadeunderelectricalloadconditions.样品承受振幅为1.52mm(P-P)的简谐振动，其频率在10至55Hz之间均匀变化，整个频率范围内(从10至55,再从55至10)约历时1分钟.除非另有规定，在相互垂直的三个方法上各振动2小时(总共6小时).如果适用,振动应在施加电负载的条件下进行TestconditionII[98.1m/s2(10gn)peak]测试条件H【峰值：98.1m/s2(10gn)】Thespecimens,whiledeenergizedoroperatingundertheloadconditionsspecified,shallbesubjectedtothevibrationamplitude,frequencyrange,anddurationspecified,andand,respectively;seefigures2and3.VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS—在没有承受或承受规定电负载的情况下，样品应分别承受如、及所规定的振幅、频率和时间的振动，见图2和图3Amplitude振幅Thespecimensshallbesubjectedtoasimpleharmonicmotionhavinganamplitudeofeither1.52mm(0.06in)doubleamplitude(maximumtotalexcursion)or98.1m/s2(10gn)peak,whicheverisless.Thetoleranceonvibrationamplitudeshallbe±10%.样品承受振幅为1.52mm(P-P)或峰值为10g的简谐振动，在两者之间选择振幅较小的一个振幅的容许误差为±10%.Frequency频率Thevibrationfrequencyshallbevariedlogarithmicallybetweentheapproximatelimitsof10Hzand500Hz(see4.1.8)exceptthattheprocedure(see4.1.4)ofthisstandardmaybeappliedduringthe10Hzto55Hzbandofthevibrationfrequencyrange.振动频率在10至500Hz范围内近似作对数变化(见4.1.8)，但在10至55Hz范围内应按4.1.4中所规定的程序进行.Sweeptimeandduration扫描时间及持续时间Theentirefrequencyrangeof10Hzto500Hzandreturnto10Hzshallbetraversedin15minutes.Thiscycleshallbeperformed12timesineachofthreemutuallyperpendiculardirections(totalof36times),sothatthemotionshallbeappliedforatotalperiodofapproximately9hours.Interruptionsarepermittedprovidedtherequirementsforrateofchangeandtestdurationaremet.Completionofcyclingwithinanyseparatebandispermissiblebeforegoingtothenextband.Whentheprocedure(see4.1.4)isusedforthe10Hzto55Hzband,thedurationofthisportionshallbesameasthedurationforthisbandusinglogarithmiccycling(approximately1-1/3hoursineachofthreemutuallyperpendiculardirections).在整个频率范围内(从10至500，再从500至10)历时15分钟.在三个互相垂直的方向上各循环12次(总共36次)，因此整个试验过程历时9小时.只要能满足振动频率及速度的变化和总的试验时间要求，就允许试验间断进行.只有在一个频段内完成循环后,才允许进入下一频段.在10至55Hz范围内,按照4.1.4的程序进行振动时,这一频段持续的时间与采用对数循环的时间相同(在三个互相垂直的每一个方向约1.33小时).TestconditionIII147.1m/s2(15gn)peak］测试条件III【峰值：147.1m/s2(15gn)】Thespecimens,whiledeenergizedoroperatingundertheloadconditionsspecified,shallbesubjectedtothevibrationamplitude,frequencyrange,anddurationspecifiedin,and,respectively;seefigures2and3.在没有承受或承受规定电负载的情况下，样品承受如、及所规定的振幅、频率及时间的振动(如图2和图3所示)。VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS一二口；…川Inr一二口；…川InrZNOTE:TestCondhionIIendsat5OQHz,TestConditionsIIIandIVerdat2QQ0Hz,Frequency(Hz)NOTE:s=0.0020ILDA(f=fiequencyinhertz,DA=doubleamplitudeinimn)-Vibrationtestcmves-highfrequency(displacementiumm)

VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS:.中[--MH二_曰三NOTE:TestCondtllonIIendsat500Hl

TestCondklonsEflandIVendat2QQ0Hz.ttprl一一aUJE至qnop)CONDITIONHIISOn100500ttprl一一aUJE至qnop)CONDITIONHIISOn100500Frequency(Hz)2000tooqoNOTE:曰=0.0512flDA(f=fiequencyinheitz,DA=doubleamplitudeininches)-Vibrationtestcurves-highfiequency(displacemeutininches)Amplitude振幅Thespecimensshallbesubjectedtoasimpleharmonicmotionhavinganamplitudeofeither1.52mm(0.06in)doubleamplitude(maximumtotalexcursion)or147.1m/s2(15gn)peak,whicheverisless.Thetoleranceonvibrationamplitudeshallbe±10%.样品承受振幅为1.52mm(P-P)或峰值为15g的简谐振动，在两者之间选择振幅较小的一个.振幅的容许误差为±10%.。Frequencyrange频率Thevibrationfrequencyshallbevariedlogarithmicallybetweentheapproximatelimitsof10Hzto2,000Hz(see4.1.8)exceptthattheprocedure(see4.1.4)ofthisstandardmaybeappliedduringthe10Hzto55Hzbandofthevibrationfrequencyrange.振动频率在10至2000Hz范围内近似作对数变化(见4.1.8),但在10至55Hz范围内应按4.1.4中所规定的程序进行。Sweeptimeandduration扫描时间及持续时间Theentirefrequencyrangeof10Hzto2,000Hzandreturnto10Hzshallbetraversedin20minutes.Thiscycleshallbeperformed12timesineachofthreemutuallyperpendiculardirections(totalof36times),sothatthemotionshallbeappliedforatotalperiodofapproximately12hours.Interruptionsarepermittedprovidedtherequirementsforrateofchangeandtestdurationaremet.Completionofcyclingwithinanyseparatebandispermissiblebeforegoingtothenextband.Whentheprocedure(see4.1.4)ofthisstandardisusedforthe10Hzto55Hzband,thedurationofthisportionshallbethesameasthedurationforthisbandusinglogarithmiccycling(approximately1-VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS—1/3hoursineachofthreemutuallyperpendiculardirections).在整个频率范围内(从10至2000，再从2000至10)历时20分钟。在三个互相垂直的方向上各循环12次(总共36次)，因此整个试验过程历时12小时.只要能满足振动频率及速度变化和总的试验时间要求，就允许试验间断进行.只有在一个频段内完成循环后，才允许进入下一频段.在10至55Hz范围内，按照4.1.4的程序进行振动时，这一频段持续的时间与采用对数循环的时间相同(在三个互相垂直的每一个方向约1.33小时)。TestconditionIV[196.1m/s2(20gn)peak]测试条件W【峰值：196.1m/s2(20gn)】Thespecimens,whiledeenergizedoroperatingundertheloadconditionsspecified,shallbesubjectedtothevibrationamplitude,frequencyrange,anddurationspecifiedin,and,respectively;seefigures2and3.在没有承受或承受规定电负载的情况下，样品承受如、及所规定的振幅、频率及时间的振动(如图2和图3所示)。Amplitude振幅Thespecimensshallbesubjectedtoasimpleharmonicmotionhavinganamplitudeofeither1.52mm(0.06in)doubleamplitude(maximumtotalexcursion)or196.1m/s2(20gn)peak,whicheverisless.Thetoleranceonvibrationamplitudeshallbe±10%.样品承受振幅为1.52mm(P-P)或峰值为20g的简谐振动，在两者之间选择振幅较小的一个.振幅的容许误差为±10%。Frequencyrange频率Thevibrationfrequencyshallbevariedlogarithmicallybetweentheapproximatelimitsof10Hzto2,000Hz(see4.1.8).振动频率在10至2000Hz范围内近似作对数变化(见4.1.8)，但在10至55Hz范围内应按4.1.4中所规定的程序进行。Sweeptimeandduration扫描时间及持续时间Theentirefrequencyrangeof10Hzto2,000Hzandreturnto10Hzshallbetraversedin20minutes.Thiscycleshallbeperformed12timesineachofthreemutuallyperpendiculardirections(totalof36times),sothatthemotionshallbeappliedforatotalperiodofapproximately12hours.Interruptionsarepermittedprovidedtherequirementsforrateofchangeandtestdurationaremet.在整个频率范围内(从10至2000,再从2000至10)历时20分钟，在三个互相垂直的方向上各循环12次(总共36次)，因此整个试验过程历时12小时。只要能满足振动频率及速度变化和总的试验时间要求，就允许试验间断进行。Completionofcyclingwithinanyseparatebandispermissiblebeforegoingtothenextband.Whentheprocedure(see4.1.4.)ofthisstandardisusedforthe10Hzto55Hzband,thedurationofthisportionshallbethesameasthedurationforthisbandusinglogarithmiccycling(approximately11/3hoursineachofthreemutuallyperpendiculardirections).只有在一个频段内完成循环后，才允许进入下一频。在10至55Hz范围内，按照4.1.4的程序进行振动时，这一频段持续的时间与采用对数循环的时间相同(在三个互相垂直的每一个方向约1.33小时)。Alternativeprocedureforuseoflinearinplaceoflogarithmicchangeoffrequency频率的线性变化代替对数变化Linearrateofchangeoffrequencyispermissibleunderthefollowingconditions:在下列条件下，可用频率的线性变化代替对数变化。Thefrequencyrangeabove55Hzshallbesubdividedintonofewerthanthreebands.Theratioofthemaximumfrequencytotheminimumfrequencyineachbandshallbenotlessthantwo(2).55Hz以上的频率范围应再细分为不少于3个频率.在每一频段里，最高频率与最低频率之比不小于2。TherateofchangeoffrequencyinHzperminuteshallbeconstantwithinanyoneband.在每一频段内，频率的变化速率(Hz/分钟)应是恒定的。VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETSTheratiosoftherateofchangeoffrequencyofeachbandtothemaximumfrequencyofthatbandshallbeapproximatelyequal.每一频段的频率变化率与该段的最高频率的比值应大致相等。Exampleofalternativeprocedure替代程序举例Asanexampleofthecomputationofratesofchange,assumethatthefrequencyspectrumhasbeendividedintothreebands,55Hzto125Hz,125Hzto500Hzand500Hzto2,000Hz,inaccordancewith.Foreachband,lettheconstant,k,representthefrequencychange(inHz/minute),dividedbythemaximumfrequency(inHz).Thentheratesofchangeforthethreebandswillbe125k,500kand2,000k,respectively.Thetimes(inminutes)totraversethethreefrequencybandsare55500-125,2,000-500,and

125K500K2.000kSincetheniiiiiniumtotalsweeptimeis30minutes.whencek=0.0687/minute.Therequiredmaximumconstantratesoffrequencychangeforthethreebandsaretherefore8.55Hzperminute,34.2Hzperminuteand137Hzperminute,respectively.Theminimumtimesoftraverseofthebandsare8.2min,10.9minand10.9min,respectively.按照的规定，假设将整个频段分为55至125,125至500,500至2000Hz三个频段.在每一频段,令频率的变化率与该段频段的最高频率之比值为忆则三个频段的频率变化率分别为125k、500k及2000k，各频段经历的时间分别为（125-55）/（125k）、（500-125）/（500k）和（2000-500）/（2000k）。因为总的扫描时间为30分钟，因此可求出k=0.0687/分钟。三个频段的频率变化率分别为8.55Hz/分钟、34.2Hz/分钟和137Hz/分钟，经过三个频段的时间分别为8.2分钟、10.9分钟和10.9分钟.TestconditionsV,VIandVII测试条件V、VI和VIIControlandanalysisofrandomvibration随机振动的控制及分析Spectraldensitycurves频谱密度曲线Theoutputofthevibrationmachineshallbepresentedgraphicallyaspower-spectraldensityversusfrequency;see.1.Thespectral-densityvaluesshallbewithin+40%and-30%(±1.5dB)ofthespecifiedvaluesbetweenalower-specifiedfrequencyand1,000Hz,andwithin+100%and-50%(±3dB)ofthespecifiedvaluesbetween1,000andanupper-specifiedfrequency(2,000Hz).Afilterbandwidthwillbeamaximumof1/3-octaveorafrequencyof25Hz,whicheverisgreater.以功率频谱密度与频率的关系来表示振动试验机的输出（见.1）.频率位于下限频率与1000Hz之间时，频谱密度的值应介于规定值的+40%和-30%以内（±1.5dB）.频率位于1000Hz与上限频率（2000Hz）之间时，频谱密度应介于规定值的+100%和-50%以内（±3dB）。滤波器的带宽是最大的1/3倍频程或者25Hz，选择其中较大的为频宽。Power-spectraldensity功率频谱密度Power-spectraldensityisthemean-squarevalueofanoscillationpassedbyanarrow-bandfilterperunit-filterbandwidth.Forthisapplicationitisexpressedasg2/f,whereg2/fisthemeansquarevalueofaccelerationexpressedingravitationalunitspernumberofcyclesoffilterbandwidth.Thespectraldensitycurvesareusuallyplottedeitheronalogarithmicscale,orinunitsofdecibels(dB).Thenumberofdecibelsisdefinedbytheequation:

VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETSdB=10log—SrThermsvalueofaccelerationwithinafrequencybandbetweenf1andf2is:--il/2J-fdffiwheregr2/fisagivenreferencevalueofpower-spectraldensity,usuallythemaximumspecifiedvalue.功率频谱密度是窄带滤波器每一单位滤波带宽所通过的振动的均方值，即g2/f.也就是滤波器带宽的每一次循环周期中所通过的以重力单位表示的加速度均方值.频谱密度曲线通常以对数坐标或以分贝(dB)为单位作曲线.分贝的定义如下：dB=10Log[(g2/f)/(gr2/f)]在频段fl至f2频段内，加速度的均方根值g=/[g2/f]i/2(积分上限为f，积分下限为fi),gr2/f为给定的参考频谱密度，通常为所给定的最大值。2Distributioncurves曲线分布Aprobabilitydensity-distributioncurvemaybeobtainedandcomparedwithaGaussiandistributioncurve.Theexperimentally-obtainedcurveshallnotdifferfromthegaussiancurvebymorethan±10%ofthemaximumvalue.得到一条概率密度分布曲线，并与高斯分布曲线对比，实验所得的密度分布曲线与高斯分布曲线相差最大不得超过±10%。Monitoring监控Monitoringinvolvesmeasurementsofthevibrationexcitationandofthetestitemperformance.Whenrequiredinthereferencingdocument,thespecimenmaybemonitoredduringthetest.Thedetailsofthemonitoringcircuit,includingthemethodandpointsofconnectiontothespecimen,shallbespecified.监控包括振动的激励和试验样品特性的测试。相关文件中应规定监控电路的细节，如连接试验样品的方法及连接点等。Vibrationinput振动输入Thevibrationmagnitudeshallbemonitoredonavibrationmachine,onmountingfixtures,atlocationsthatareasnearaspracticabletothetestitemmountingpoints.Whenthevibrationinputismeasuredatmorethanonepoint,theminimuminputvibrationshallnormallybemadetocorrespondtothespecifiedtestcurve;seefigures4and5.Formassivetestitemsandfixtures,andforlargeforceexcitersormultiplevibrationexciters,theinputcontrolvaluemaybeanaverageoftheaveragemagnitudesofthreeormoreinputs.Accelerationsinthetransversedirection,measuredatthetestitemattachmentpoints,shallbelimitedto100%oftheappliedvibration.Thenumberandlocationofthetestpointsshallbespecified.应该监控振动试验机和安装夹具的振动幅度，监测位置应尽可能靠近试验样品的安装点。当在一个以上的点测量振动输入时，应使最小的振动输入符合试验曲线的规定(见图4和图5)。对于大重量的样品和夹具，以及强力激励和复式振动激励器，输入控制值可以取三个或三个以上的输入平均幅度的平均值，在试验样品连接点上测得的横向加速度应限制在所施加振动量的100%以内，同时应规定试验点的位置和数量。4.2.2Procedure试验程序Thespecimen,orsubstituteequivalentmass,shallbemountedinaccordancewith3.3.2andthemonitoringequipmentattached,ifapplicable,inaccordancewith.ThevibrationmachineshallthenbeoperatedandequalizedorcompensatedtodelivertherequiredfrequenciesandintensitiesconformingtothecurvesspecifiedintestconditionV,figure4,ortestconditionVI,figure5,ortestconditionVII,figure6(see2.1).Thespecimenshallthenbesubjectedtothevibrationspecifiedbythetestconditionletter(seetables2,3and4)forthedurationasspecified:Ineachofthreemutuallyperpendiculardirections,andintheorderspecified（see3.3.2）,asapplicable.样品应3.3.2的规定安装，并按的规定连接监控设备。然后开动或平衡或校准振动试验机，以便传递规定的振动频率和强度（条件V或VI或VII，见图4或图5或图6）。最后将试验样品按规定的时间和方向承受试验条件（见表2或表3或表4）。三个互相垂直的每一方向上振动的振动时间按规定为以下四种：3minutes;3分钟15minutes;15分钟1-1/2hours;1.5小时or8hours;8小时Themeasurementsmadebefore,during,andafterthetestshallbespecifiedandifthespecimenistobemonitoredduringthetest,thedetailsshallbeinaccordancewith.试验前后或试验过程中应按规定进行相关测试，如在测试过程中需要特定性能的监控则按的规定。4.2.3Electricalloadanddiscontinuities电负载和电气不连续性Unlessotherwisespecifiedinthereferencingdocument,theelectricalloadconditionsshallbe100milliamperesforallcontacts.除非另有规定，接触件通过的电流应均为100mA，并且试验过程中不允许出现大于1us的断路现象。Unlessotherwisespecifiedinthereferencingdocument,nodiscontinuitiesofonemicrosecondorgreaterdurationareallowed.Adetectorcapableofdetectingthespecifieddiscontinuityshallbeused.除非另有规定，试验过程中不允许出现大于1Us的断路现象。测试中需采用能满足测试精度要求的瞬断仪。00050052*»2100Nsextmuap00050052*»2100Nsextmuap一eiuadsJ3M0ELUPPERTOLERANCELIMIT+1.54BSPECIFIEDCURVE100100。2000Frequency(Hz)Figure4-TestconditionV,randomvibrationtest-curveenvelope(seetable2).VIBRATIONTESTPROCEDUREFORELECTRICALCONNECTORSANDSOCKETS(NH/E6)fflioad啪」由MQd00,00,00,50,256.210.0.OJO5010010002000Frequency(Hz)+3dBUPPERTOLERANCELIMIT-6db/0CTAVEA+1.5dB「一SPECIFIEDCURVE-LOWERTOLERANCEUMIT(NH/E6)fflioad啪」由MQd00,00,00,50,256.210.0.OJO5010010002000Frequency(Hz)+3dBUPPERTOLERANCELIMIT-6db/0CTAVEA+1.5dB「一SPECIFIEDCURVE-LOWERTOLERANCEUMITFigure5-TestconditionVI,randomvibrationtest-curveenvelope(seetable3).Figure5-TestconditionVI,randomvibrationtest-curveenvelope(seetable3).Table2-Valuesfor