ZB J 73023-1989 活塞式制冷压缩机活塞销 技术条件
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基本信息
| 标准名称： | 活塞式制冷压缩机活塞销 技术条件 |
| 中标分类： | 机械 >> 通用机械与设备 >> 制冷设备 |
| 发布日期： | |
| 实施日期： | 1999-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： |
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所属分类： 机械 通用机械与设备 制冷设备
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【英文标准名称】:StandardTestMethodsforMeasurementofElectricalPerformanceandSpectralResponseofNonconcentratorMultijunctionPhotovoltaicCellsandModules
【原文标准名称】:非集中多结光电池和组件的电性能和光谱灵敏度测量的标准试验方法
【标准号】:ASTME2236-2005a
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E44.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:性能;测量;光谱的;电性能;响应;光电电池
【英文主题词】:SolarEnergy;Photovoltaics;MultijunctionDevices;ElectricalPerformance;SpectralResponse
【摘要】:Inaseries-connectedmultijunctionPVdevice,theincidenttotalandspectralirradiancedetermineswhichcomponentcellwillgeneratethesmallestphotocurrentandthuslimitthecurrentthroughtheentireseries-connecteddevice.Thiscurrent-limitingbehavioralsoaffectsthefillfactorofthedevice.Becauseofthis,specialtechniquesareneededtomeasurethecorrectI-Vcharacteristicsofmultijunctiondevicesunderthedesiredreportingconditions(seeTestMethodsE1036).Thesetestmethodsuseanumericalparametercalledthecurrentbalancewhichisameasureofhowwellthetestconditionsreplicatethedesiredreportingconditions.Whenthecurrentbalancedeviatesfromunitybymorethan0.03,theuncertaintyofthemeasurementmaybeincreased.TheeffectsofcurrentlimitinginindividualcomponentcellscancauseproblemsforI-Vcurvetranslationstodifferenttemperatureandirradianceconditions,suchasthetranslationsrecommendedinTestMethodsE1036.Forexample,ifadifferentcomponentcellbecomesthelimitingcellastheirradianceisvaried,adiscontinuityinthecurrentversusirradiancecharacteristicmaybeobserved.Forthisreason,itisrecommendedthatI-Vcharacteristicsofmultijunctiondevicesbemeasuredattemperatureandirradianceconditionsclosetothedesiredreportingconditions.Somemultijunctiondeviceshavemorethantwoterminalswhichallowelectricalconnectionstoeachcomponentcell.Inthesecases,thespecialtechniquesforspectralresponsemeasurementsarenotneededbecausethecomponentcellscanbemeasuredindividually.However,theseI-Vtechniquesarestillneededifthedeviceisintendedtobeoperatedasatwo-terminaldevice.Usingthesetestmethods,thespectralresponseistypicallymeasuredwhiletheindividualcomponentcellundertestisilluminatedatlevelsthatarelessthanEo.Nonlinearityofthespectralresponsemaycausethemeasuredresultstodifferfromthespectralresponseattheilluminationlevelsofactualuseconditions.1.1Thesetestmethodsprovidespecialtechniquesneededtodeterminetheelectricalperformanceandspectralresponseoftwo-terminal,multijunctionphotovoltaic(PV)devices,bothcellandmodules.1.2Thesetestmethodsaremodificationsandextensionsoftheproceduresforsingle-junctiondevicesdefinedbyTestMethodsE948,E1021,andE1036.1.3Thesetestmethodsdonotincludetemperatureandirradiancecorrectionsforspectralresponseandcurrent-voltage(I-V)measurements.ProceduresforsuchcorrectionsareavailableinTestMethodsE948,E1021,andE1036.1.4Thesetestmethodsapplyonlytononconcentratorterrestrialmultijunctionphotovoltaiccellsandmodules.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K83
【国际标准分类号】:27_160
【页数】:5P.;A4
【正文语种】:
Product Code:SAE AS7458
Title:Studs, Steel, Low Alloy, Heat Resistant Normalized and Tempered, Roll Threaded 135 000 psi Tensile Strength
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope: This procurement specification covers aircraft quality studs made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675, and of 135 000 psi tensile strength at room temperature. Primarily for aerospace propulsion system applications where good strength at temperatures up to approximately 900掳 F is required and the part is protected against corrosion.
【原文标准名称】:非集中多结光电池和组件的电性能和光谱灵敏度测量的标准试验方法
【标准号】:ASTME2236-2005a
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:E44.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:性能;测量;光谱的;电性能;响应;光电电池
【英文主题词】:SolarEnergy;Photovoltaics;MultijunctionDevices;ElectricalPerformance;SpectralResponse
【摘要】:Inaseries-connectedmultijunctionPVdevice,theincidenttotalandspectralirradiancedetermineswhichcomponentcellwillgeneratethesmallestphotocurrentandthuslimitthecurrentthroughtheentireseries-connecteddevice.Thiscurrent-limitingbehavioralsoaffectsthefillfactorofthedevice.Becauseofthis,specialtechniquesareneededtomeasurethecorrectI-Vcharacteristicsofmultijunctiondevicesunderthedesiredreportingconditions(seeTestMethodsE1036).Thesetestmethodsuseanumericalparametercalledthecurrentbalancewhichisameasureofhowwellthetestconditionsreplicatethedesiredreportingconditions.Whenthecurrentbalancedeviatesfromunitybymorethan0.03,theuncertaintyofthemeasurementmaybeincreased.TheeffectsofcurrentlimitinginindividualcomponentcellscancauseproblemsforI-Vcurvetranslationstodifferenttemperatureandirradianceconditions,suchasthetranslationsrecommendedinTestMethodsE1036.Forexample,ifadifferentcomponentcellbecomesthelimitingcellastheirradianceisvaried,adiscontinuityinthecurrentversusirradiancecharacteristicmaybeobserved.Forthisreason,itisrecommendedthatI-Vcharacteristicsofmultijunctiondevicesbemeasuredattemperatureandirradianceconditionsclosetothedesiredreportingconditions.Somemultijunctiondeviceshavemorethantwoterminalswhichallowelectricalconnectionstoeachcomponentcell.Inthesecases,thespecialtechniquesforspectralresponsemeasurementsarenotneededbecausethecomponentcellscanbemeasuredindividually.However,theseI-Vtechniquesarestillneededifthedeviceisintendedtobeoperatedasatwo-terminaldevice.Usingthesetestmethods,thespectralresponseistypicallymeasuredwhiletheindividualcomponentcellundertestisilluminatedatlevelsthatarelessthanEo.Nonlinearityofthespectralresponsemaycausethemeasuredresultstodifferfromthespectralresponseattheilluminationlevelsofactualuseconditions.1.1Thesetestmethodsprovidespecialtechniquesneededtodeterminetheelectricalperformanceandspectralresponseoftwo-terminal,multijunctionphotovoltaic(PV)devices,bothcellandmodules.1.2Thesetestmethodsaremodificationsandextensionsoftheproceduresforsingle-junctiondevicesdefinedbyTestMethodsE948,E1021,andE1036.1.3Thesetestmethodsdonotincludetemperatureandirradiancecorrectionsforspectralresponseandcurrent-voltage(I-V)measurements.ProceduresforsuchcorrectionsareavailableinTestMethodsE948,E1021,andE1036.1.4Thesetestmethodsapplyonlytononconcentratorterrestrialmultijunctionphotovoltaiccellsandmodules.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:K83
【国际标准分类号】:27_160
【页数】:5P.;A4
【正文语种】:
Product Code:SAE AS7458
Title:Studs, Steel, Low Alloy, Heat Resistant Normalized and Tempered, Roll Threaded 135 000 psi Tensile Strength
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope: This procurement specification covers aircraft quality studs made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675, and of 135 000 psi tensile strength at room temperature. Primarily for aerospace propulsion system applications where good strength at temperatures up to approximately 900掳 F is required and the part is protected against corrosion.