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Product Code:SAE J1278
Title:SI (Metric) Synchronous Belts and Pulleys
Issuing Committee:Belt Drive (Automotive) Systems Committee
Scope: Synchronous belt drives consist of a toothed belt which mates with grooved pulleys to provide a precise speed ratio between the driver and driven pulleys. This SAE Standard covers the synchronous belt and pulley sections currently in use in automotive applications such as camshaft, distributor, and other underhood drives that may require synchronization. It also provides for future sections to be added as usage develops.
Rationale: Synchronous belt drives consist of a toothed belt which mates with grooved pulleys to provide a precise speed ratio between the driver and driven pulleys. This SAE Standard covers the synchronous belt and pulley sections currently in use in automotive applications such as camshaft, distributor, and other underhood drives that may require synchronization. It also provides for future sections to be added as usage develops.【英文标准名称】:StandardTestMethodforCalibrationofPrimaryNon-ConcentratorTerrestrialPhotovoltaicReferenceCellsUsingaTabularSpectrum
【原文标准名称】:用表列光谱校准初级非集中大地光电标准电池的标准试验方法
【标准号】:ASTME1125-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:校准;电性能;光电设备;原基准大地光电参比电池;光谱辐照度;光谱响应;大地光电参比电池;电性能-太阳能设备;照明-太阳能设备;辐照/照射-太阳能设备;校准-核分析仪器;线性变化/非线性;非集中大地光电参比电池;户外测定;性能-光电设备/应用;太阳能光伏发电系统;初级非集中地面光伏设备;太阳热量测量学;参比太阳光谱;相对光谱响应/分布;短路测量;太阳能集热器;太阳光谱辐照度;光谱数据-太阳能设备;阳光/单色光照射;光谱辐照度分布表列参考;
【英文主题词】:calibration;electricalperformance;photovoltaicdevices;primaryterrestrialphotovoltaicreferencecells;spectralirradiance;spectralresponse;terrestrialphotovoltaicreferencecells;Electricalperformance--solardevices;Illumination--solard
【摘要】:Theelectricaloutputofaphotovoltaicdeviceisdependentonthespectralcontentoftheilluminationsource,itsintensity,andthedevicetemperature.Tomakestandardized,accuratemeasurementsoftheperformanceofphotovoltaicdevicesunderavarietyoflightsources,itisnecessarytoaccountfortheerrorintheshort-circuitcurrentthatoccursiftherelativespectralresponseofthereferencecellisnotidenticaltothespectralresponseofthedevicetobetested.Asimilarerroroccursifthespectralirradiancedistributionofthetestlightsourceisnotidenticaltothedesiredreferencespectralirradiancedistribution.Theseerrorsareaccountedforbythespectralmismatchparameter(describedinTestMethodE973),aquantitativemeasureoftheerrorintheshort-circuitcurrentmeasurement.Itistheintentofthistestmethodtoprovidearecognizedprocedureforcalibrating,characterizing,andreportingthecalibrationdataforprimaryphotovoltaicreferencecellsusingatabularreferencespectrum.Thecalibrationofareferencecellisspecifictoaparticularspectralirradiancedistribution.Itistheresponsibilityoftheusertospecifytheapplicableirradiancedistribution,forexampleTablesG173.Thistestmethodallowscalibrationwithrespecttoanytabularspectrum.Areferencecellshouldberecalibratedatyearlyintervals,oreverysixmonthsifthecellisincontinuoususeoutdoors.RecommendedphysicalcharacteristicsofreferencecellscanbefoundinSpecificationE1040.Becausesiliconsolarcellsmadeonp-typesubstratesaresusceptibletoalossofIscuponinitialexposuretolight,itisrequiredthatnewlymanufacturedreferencecellsbelightsoakedatanirradiancelevelgreaterthan850W/m2for2hpriortoinitialcharacterizationinSection7.1.1Thistestmethodisintendedtobeusedforcalibrationandcharacterizationofprimaryterrestrialphotovoltaicreferencecellstoadesiredreferencespectralirradiancedistribution,suchasTablesG173.TherecommendedphysicalrequirementsforthesereferencecellsaredescribedinSpecificationE1040.Referencecellsareprincipallyusedinthedeterminationoftheelectricalperformanceofphotovoltaicdevices.1.2Primaryphotovoltaicreferencecellsarecalibratedinnaturalsunlightusingtherelativespectralresponseofthecell,therelativespectraldistributionofthesunlight,andatabulatedreferencespectralirradiancedistribution.1.3ThistestmethodrequirestheuseofapyrheliometerthatiscalibratedaccordingtoTestMethodE816,whichrequirestheuseofapyrheliometerthatistraceabletotheWorldRadiometricReference(WRR).Therefore,referencecellscalibratedaccordingtothistestmethodaretraceabletotheWRR.1.4ThistestmethodisatechniquethatmaybeusedinsteadoftheproceduresfoundinTestMethodE1362.Thistestmethodoffersconvenienceinitsabilitytocharacterizeareferencecellunderanyspectrumforwhichtabulateddataareavailable.Theselectionofthespecificreferencespectrumislefttotheuser.1.5Thistestmethodappliesonlytothecalibra......
【中国标准分类号】:F12
【国际标准分类号】:27_160
【页数】:6P.;A4
【正文语种】: