ANSI/TIA-455-73-1997 光学纤维机械特性受温度和湿度循环影响的评估方法
时间:2024-05-10 17:59:36 来源: 标准资料网 作者：标准资料网 阅读：9830
【英文标准名称】:ProcedureforAssessingTemperatureandHumidityCyclingExposureEffectonMechanicalCharacteristicsofOpticalFiber
【原文标准名称】:光学纤维机械特性受温度和湿度循环影响的评估方法
【标准号】:ANSI/TIA-455-73-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;机械试验;光波导;湿度;光纤
【英文主题词】:Cables;Cycling;Effect;Exposure;Fibreoptics;Fibres;Humidity;Mechanical;Mechanicaltesting;Opticalfibres;Opticalwaveguides;Telecommunications;Temperature;Testing
【摘要】:Describesamethodforthedetermination,inanacceleratedmanner,oftheeffectsoftemperatureandhumiditycyclingonthemechanicalcharacteristicsofopticalfibers
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:
【正文语种】:英语
Product Code:SAE J53
Title:Minimum Performance Criteria for Emergency Steering of Wheeled Earthmoving Construction Machines (Cancelled Jul 1993, Superseded by J1511)
Issuing Committee:Off-Road Machinery Technical Comm
Scope: This SAE Recommended Practice provides minimum performance and test criteria for the emergency steering of specified machines in the event of an engine or steering power source failure. This criteria shall enable machine manufacturers to uniformly evaluate emergency steering capability. This recommended practice is specifically limited to tractor scrapers, wheel loaders, wheel tractors, graders, and dumpers (as defined in SAE J1116 (January, 1977) and J1057a (June, 1975) which are designed to operate at a maximum rated speed in excess of 20.0 km/h (12.4 mph) and which employ power (source(s) in addition to the operator control effort to effect machine steering.【英文标准名称】:Semiconductordevices—Mechanicalandclimatictestmethods—Part37:Boardleveldroptestmethodusinganaccelerometer
【原文标准名称】:半导体装置.机械和气候试验方法.使用加速计的电路板级落锤试验方法
【标准号】:BSEN60749-37-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-05-30
【实施或试行日期】:2008-05-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:加速测量仪;加速计;应用;壳体;气候;气候试验;组件;定义;设计;跌落试验;电气工程;电子的;电子设备及元件;故障分析;故障标准;仪器;机械工人;机械测试;印制电路板;半导体器件;半导体;标准化;测试
【英文主题词】:Accelerationmeasuringinstruments;Accelerometers;Applications;Bodies;Climatic;Climatictests;Components;Definition;Definitions;Design;Droptests;Electricalengineering;Electronic;Electronicequipmentandcomponents;Failureanalysis;Failurecriterion;Instruments;Mechanic;Mechanicaltesting;Printed-circuitboards;Semiconductordevices;Semiconductors;Standardizations;Testing
【摘要】:ThispartofIEC60749providesatestmethodthatisintendedtoevaluateandcomparedropperformanceofsurfacemountelectroniccomponentsforhandheldelectronicproductapplicationsinanacceleratedtestenvironment,whereexcessiveflexureofacircuitboardcausesproductfailure.Thepurposeistostandardizethetestboardandtestmethodologytoprovideareproducibleassessmentofthedroptestperformanceofsurface-mountedcomponentswhileproducingthesamefailuremodesnormallyobservedduringproductleveltest.Thepurposeofthisstandardistoprescribeastandardizedtestmethodandreportingprocedure.Thisisnotacomponentqualificationtestandisnotmeanttoreplaceanysystemleveldroptestthatmaybeneededtoqualifyaspecifichandheldelectronicproduct.ThestandardisnotmeanttocoverthedroptestrequiredtosimulateshippingandhandlingrelatedshockofelectroniccomponentsorPCBassemblies.TheserequirementsarealreadyaddressedintestmethodssuchasIEC60749-10.Themethodisapplicabletobothareaarrayandperimeter-leadedsurfacemountedpackages.Thistestmethodusesanaccelerometertomeasurethemechanicalshockdurationandmagnitudeappliedwhichisproportionaltothestressonagivencomponentmountedonastandardboard.ThetestmethoddescribedinthefutureIEC60749-401usesstraingaugetomeasurethestrainandstrainrateofaboardinthevicinityofacomponent.Thedetailedspecificationstateswhichtestmethodistobeused.
【中国标准分类号】:L40
【国际标准分类号】:31_080_01
【页数】:22P.;A4
【正文语种】:英语