QJ 1460-1988 半导体集成电路宽带放大器测试方法
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基本信息
| 标准名称： | 半导体集成电路宽带放大器测试方法 |
| 中标分类： | 航空、航天 >> 航空器与航天器零部件 >> 电子元器件 |
| ICS分类： | 航空器和航天器工程 >> 航空航天用电气设备与系统 |
| 发布日期： | 1988-04-08 |
| 实施日期： | 1988-10-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 9页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 航空 航天 航空器与航天器零部件 电子元器件 航空器和航天器工程 航空航天用电气设备与系统
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforDeterminingTransmissivityandStorageCoefficientofBounded,Nonleaky,ConfinedAquifers
【原文标准名称】:测定有界非泄漏承压含水层透水率和储水系数的标准试验方法
【标准号】:ASTMD5270-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquiferboundaries;aquifertests;aquifers;confinedaquifers;controlwells;groundwater;hydraulicproperties;imagewells;observationwells;storagecoefficient;transmissivity;Aquifers;Boundaryconditions;Confinedaquifers;Controlwells;Draw-d
【摘要】:Assumptions:Thewelldischargesataconstantrate.Wellisofinfinitesimaldiameterandisopenthroughthefullthicknessoftheaquifer.Thenonleakyconfinedaquiferishomogeneous,isotropic,andareallyextensiveexceptwherelimitedbylinearboundaries.Dischargefromthewellisderivedinitiallyfromstorageintheaquifer;later,movementofwatermaybeinducedfromaconstant-headboundaryintotheaquifer.ThegeometryoftheassumedaquiferandwellareshowninFig.1orFig.2.Boundariesareverticalplanes,infiniteinlengththatfullypenetratetheaquifer.Nowaterisyieldedtotheaquiferbyimpermeableboundaries,whereasrechargingboundariesareinperfecthydraulicconnectionwiththeaquifer.Observationwellsrepresenttheheadintheaquifer;thatis,theeffectsofwellborestorageintheobservationwellsarenegligible.ImplicationsofAssumptions:Implicitintheassumptionsaretheconditionsofafully-penetratingcontrolwellandobservationwellsofinfinitesimaldiameterinaconfinedaquifer.Undercertainconditions,aquifertestscanbesuccessfullyanalyzedwhenthecontrolwellisopentoonlypartoftheaquiferorcontainsasignificantvolumeofwaterorwhenthetestisconductedinanunconfinedaquifer.TheseconditionsarediscussedinmoredetailinTestMethodD4105.Incasesinwhichthistestmethodisusedtolocateanunknownboundary,aminimumofthreeobservationwellsisneeded.Ifonlytwoobservationwellsareavailable,twopossiblelocationsoftheboundaryaredefined,andifonlyoneobservationwellisused,acircledescribingallpossiblelocationsoftheimagewellisdefined.Theeffectsofaconstant-headboundaryareoftenindistinguishablefromtheeffectsofaleaky,confinedaquifer.Therefore,caremustbetakentoensurethatacorrectconceptualmodelofthesystemhasbeencreatedpriortoanalyzingthetest.SeeGuideD4043.1.1Thistestmethodcoversananalyticalprocedurefordeterminingthetransmissivity,storagecoefficient,andpossiblelocationofboundariesforaconfinedaquiferwithalinearboundary.Thistestmethodisusedtoanalyzewater-levelorheaddatafromoneormoreobservationwellsorpiezometersduringthepumpingofwaterfromacontrolwellataconstantrate.Thistestmethodalsoappliestoflowingartesianwellsdischargingataconstantrate.Withappropriatechangesinsign,thistestmethodalsocanbeusedtoanalyzetheeffectsofinjectingwaterintoacontrolwellataconstantrate.1.2TheanalyticalprocedureinthistestmethodisusedinconjunctionwiththefieldprocedureinTestMethodD4050.1.3Limitations8212;ThevaliduseofthistestmethodislimitedtodeterminationoftransmissivitiesandstoragecoefficientsforaquifersinhydrogeologicsettingswithreasonablecorrespondencetotheassumptionsoftheTheisnonequilibriummethod(seeTestMethodD4106)(see5.1),exceptthattheaquiferislimitedinarealextentbyalinearboundarythatfullypenetratestheaquifer.Theboundaryisassumedtobeeitheraconstant-headboundary(equivalenttoastreamorlakethathydraulicallyfullypenetratestheaquifer)orano-flow(impermeable)boundary(equivalenttoacontactwithasignificantlylesspermeablerockunit).TheTheisnonequilibriummethodisdescribedinTestMethodsD4105andD4106.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itisthere......
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:Flexibleinsulatingsleevingforelectricalpurposes.Specificationforrequirementsforindividualtypesofsleeving.Extrudedsiliconesleeving
【原文标准名称】:电气用柔性绝缘套管.特殊类型套管的要求规范.挤制硅树脂套管
【标准号】:BS6893Pt.3Sec.121and122-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-09-15
【实施或试行日期】:1995-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:弯曲试验;直径;厚度;抗拉强度;套管(电气的);固体绝缘材料;电绝缘材料;断裂伸长;电绝缘;柔性材料;优先尺寸;电缆护套;击穿电压;尺寸公差;尺寸变化;聚烯烃;硅氧烷;名称与符号;挤压
【英文主题词】:
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_035_20
【页数】:16P;A4
【正文语种】:英语
【原文标准名称】:测定有界非泄漏承压含水层透水率和储水系数的标准试验方法
【标准号】:ASTMD5270-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquiferboundaries;aquifertests;aquifers;confinedaquifers;controlwells;groundwater;hydraulicproperties;imagewells;observationwells;storagecoefficient;transmissivity;Aquifers;Boundaryconditions;Confinedaquifers;Controlwells;Draw-d
【摘要】:Assumptions:Thewelldischargesataconstantrate.Wellisofinfinitesimaldiameterandisopenthroughthefullthicknessoftheaquifer.Thenonleakyconfinedaquiferishomogeneous,isotropic,andareallyextensiveexceptwherelimitedbylinearboundaries.Dischargefromthewellisderivedinitiallyfromstorageintheaquifer;later,movementofwatermaybeinducedfromaconstant-headboundaryintotheaquifer.ThegeometryoftheassumedaquiferandwellareshowninFig.1orFig.2.Boundariesareverticalplanes,infiniteinlengththatfullypenetratetheaquifer.Nowaterisyieldedtotheaquiferbyimpermeableboundaries,whereasrechargingboundariesareinperfecthydraulicconnectionwiththeaquifer.Observationwellsrepresenttheheadintheaquifer;thatis,theeffectsofwellborestorageintheobservationwellsarenegligible.ImplicationsofAssumptions:Implicitintheassumptionsaretheconditionsofafully-penetratingcontrolwellandobservationwellsofinfinitesimaldiameterinaconfinedaquifer.Undercertainconditions,aquifertestscanbesuccessfullyanalyzedwhenthecontrolwellisopentoonlypartoftheaquiferorcontainsasignificantvolumeofwaterorwhenthetestisconductedinanunconfinedaquifer.TheseconditionsarediscussedinmoredetailinTestMethodD4105.Incasesinwhichthistestmethodisusedtolocateanunknownboundary,aminimumofthreeobservationwellsisneeded.Ifonlytwoobservationwellsareavailable,twopossiblelocationsoftheboundaryaredefined,andifonlyoneobservationwellisused,acircledescribingallpossiblelocationsoftheimagewellisdefined.Theeffectsofaconstant-headboundaryareoftenindistinguishablefromtheeffectsofaleaky,confinedaquifer.Therefore,caremustbetakentoensurethatacorrectconceptualmodelofthesystemhasbeencreatedpriortoanalyzingthetest.SeeGuideD4043.1.1Thistestmethodcoversananalyticalprocedurefordeterminingthetransmissivity,storagecoefficient,andpossiblelocationofboundariesforaconfinedaquiferwithalinearboundary.Thistestmethodisusedtoanalyzewater-levelorheaddatafromoneormoreobservationwellsorpiezometersduringthepumpingofwaterfromacontrolwellataconstantrate.Thistestmethodalsoappliestoflowingartesianwellsdischargingataconstantrate.Withappropriatechangesinsign,thistestmethodalsocanbeusedtoanalyzetheeffectsofinjectingwaterintoacontrolwellataconstantrate.1.2TheanalyticalprocedureinthistestmethodisusedinconjunctionwiththefieldprocedureinTestMethodD4050.1.3Limitations8212;ThevaliduseofthistestmethodislimitedtodeterminationoftransmissivitiesandstoragecoefficientsforaquifersinhydrogeologicsettingswithreasonablecorrespondencetotheassumptionsoftheTheisnonequilibriummethod(seeTestMethodD4106)(see5.1),exceptthattheaquiferislimitedinarealextentbyalinearboundarythatfullypenetratestheaquifer.Theboundaryisassumedtobeeitheraconstant-headboundary(equivalenttoastreamorlakethathydraulicallyfullypenetratestheaquifer)orano-flow(impermeable)boundary(equivalenttoacontactwithasignificantlylesspermeablerockunit).TheTheisnonequilibriummethodisdescribedinTestMethodsD4105andD4106.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itisthere......
【中国标准分类号】:P13
【国际标准分类号】:13_060_10
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:Flexibleinsulatingsleevingforelectricalpurposes.Specificationforrequirementsforindividualtypesofsleeving.Extrudedsiliconesleeving
【原文标准名称】:电气用柔性绝缘套管.特殊类型套管的要求规范.挤制硅树脂套管
【标准号】:BS6893Pt.3Sec.121and122-1995
【标准状态】:作废
【国别】:英国
【发布日期】:1995-09-15
【实施或试行日期】:1995-09-15
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:弯曲试验;直径;厚度;抗拉强度;套管(电气的);固体绝缘材料;电绝缘材料;断裂伸长;电绝缘;柔性材料;优先尺寸;电缆护套;击穿电压;尺寸公差;尺寸变化;聚烯烃;硅氧烷;名称与符号;挤压
【英文主题词】:
【摘要】:
【中国标准分类号】:K15
【国际标准分类号】:29_035_20
【页数】:16P;A4
【正文语种】:英语