DIN ISO 7451-1985 土方机械.液压挖掘机.锄式铲斗.容量
时间:2024-05-12 17:34:21 来源: 标准资料网 作者：标准资料网 阅读：8557
【英文标准名称】:Earth-movingmachinery;hydraulicexcavators;hoetypebuckets;volumetricratings;identicalwithISO7451,edition1983
【原文标准名称】:土方机械.液压挖掘机.锄式铲斗.容量
【标准号】:DINISO7451-1985
【标准状态】:作废
【国别】:德国
【发布日期】:1985-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:NAM
【标准类型】:()
【标准水平】:()
【中文主题词】:土方机械;体积;额定值;液压操纵装置;液压挖掘机;容量;定义;机械工程;挖掘机械;测定;桶;拖铲挖土机;提斗;挖掘机;额定容量;机铲挖土机;液压装置
【英文主题词】:
【摘要】:
【中国标准分类号】:P97
【国际标准分类号】:3685
【页数】:6P;A4
【正文语种】:德语
【英文标准名称】:Photovoltaicdevices—Part7:Computationofthespectralmismatchcorrectionformeasurementsofphotovoltaicdevices
【原文标准名称】:光电器件.第7部分:光电器件测量的光谱失谐修正的估算
【标准号】:BSEN60904-7-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-05-31
【实施或试行日期】:2009-05-31
【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】:调节;校正;元部件;校正因子;修正;测定;漂移;电气工程;外壳;作标记;数学计算;失配;模数;安装;光电的;参考装置;选择;太阳能电池;太阳能收集器;太阳能动力装置;规范(验收);光谱辐照度;技术数据单;试验
【英文主题词】:Adjustment;Calibration;Components;Correctionfactor;Corrections;Determination;Drift;Electricalengineering;Enclosures;Marking;Mathematicalcalculations;Mismatch;Modules;Mounting;Photovoltaics;Referencedevices;Selection;Solarcells;Solarcollectors;Solar-powereddevices;Specification(approval);Spectralirradiance;Technicaldatasheets;Testing;
【摘要】:ThispartofIEC60904describestheprocedureforcorrectingthebiaserrorintroducedinthetestingofaphotovoltaicdevice,causedbythemismatchbetweenthetestspectrumandthereferencespectrumandbythemismatchbetweenthespectralresponses(SR)ofthereferencecellandofthetestspecimen.TheprocedureappliesonlytophotovoltaicdeviceslinearinSRasdefinedinIEC60904-10.Thisprocedureisvalidforsinglejunctiondevicesbuttheprinciplemaybeextendedtocovermultijunctiondevices.Thepurposeofthisstandardistogiveguidelinesforthecorrectionofmeasurementbias,shouldtherebeamismatchbetweenboththetestspectrumandthereferencespectrumandbetweenthereferencedeviceSRandthetestspecimenSR.SinceaPVdevicehasawavelength-dependentresponse,itsperformanceissignificantlyaffectedbythespectraldistributionoftheincidentradiation,whichinnaturalsunlightvarieswithseveralfactorssuchaslocation,weather,timeofyear,timeofday,orientationofthereceivingsurface,etc.,andwithasimulatorvarieswithitstypeandconditions.Iftheirradianceismeasuredwithathermopile-typeradiometer(thatisnotspectrallyselective)orwithareferencesolarcell,thespectralirradiancedistributionoftheincominglightmustbeknowntomakethenecessarycorrectionstoobtaintheperformanceofthePVdeviceunderthereferencesolarspectraldistributiondefinedinIEC60904-3.IfareferencePVdeviceorathermopiletypedetectorisusedtomeasuretheirradiancethen,followingtheproceduregiveninthisstandard,itispossibletocalculatethespectralmismatchcorrectionnecessarytoobtaintheshort-circuitcurrentofthetestPVdeviceunderthereferencesolarspectralirradiancedistributionincludedinTable1ofIEC60904-3oranyotherreferencespectrum.IfthereferencePVdevicehasthesamerelativespectralresponseasthetestPVdevicethenthereferencedeviceautomaticallytakesintoaccountdeviationsofthereallightspectraldistributionfromthestandardspectraldistribution,andnofurthercorrectionofspectralbiaserrorsisnecessary.Inthiscase,locationandweatherconditionsarenotcriticalwhenthereferencedevicemethodisusedforoutdoorperformancemeasurementsprovidedbothreferencecellandtestPVdevicehavethesamerelativespectralresponse.Also,foridenticalrelativeSR’s,thespectralclassificationofthesimulatorisnotcriticalforindoormeasurements.IftheperformanceofaPVdeviceismeasuredusingaknownspectralirradiancedistribution,itsshort-circuitcurrentatanyotherspectralirradiancedistributioncanbecomputedusingthespectralresponseofthePVtestdevice.
【中国标准分类号】:L50
【国际标准分类号】:27_160
【页数】:14P.;A4
【正文语种】:英语
【英文标准名称】:Guidetothecalibrationandsettingupoftheultrasonictimeofflightdiffraction(TOFD)techniqueforthelocationandsizingofflaws
【原文标准名称】:裂纹定位和定尺寸用的衍射超声波渡越时间技术设备(TOFD)的校准与调定指南
【标准号】:BSDD174-1988
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:N77
【国际标准分类号】:
【页数】:
【正文语种】: