【英文标准名称】:StandardTestMethodforCalibrationofPyrheliometersbyComparisontoReferencePyrheliometers
【原文标准名称】:日射强度计与基准日射强度计进行比较校准的标准试验方法
【标准号】:ASTME816-2005
【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】:G03.09
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:校正;比较;太阳热量测量学;太阳能
【英文主题词】:
【摘要】:1.1Thistestmethodhasbeenharmonizedwith,andistechnicallyequivalentto,ISO9059.1.2Twotypesofcalibrationsarecoveredbythistestmethod.Oneisthecalibrationofasecondaryreferencepyrheliometerusinganabsolutecavitypyrheliometerastheprimarystandardpyrheliometer,andtheotheristhetransferofcalibrationfromasecondaryreferencetooneormorefieldpyrheliometers.Thistestmethodproscribesthecalibrationproceduresandthecalibrationhierarchy,ortraceability,fortransferofthecalibrations.Note1Itisnotuncommon,andisindeeddesirable,forboththereferenceandfieldpyrheliometerstobeofthesamemanufacturerandmodeldesignation.1.3Thistestmethodisrelevantprimarilyforthecalibrationofreferencepyrheliometerswithfieldanglesof5to6,usingastheprimaryreferenceinstrumentaself-calibratingabsolutecavitypyrheliometerhavingfieldanglesofabout5.Pyrheliometerswithfieldanglesgreaterthan6.5shallnotbedesignatedasreferencepyrheliometers.1.4Whenthistestmethodisusedtotransfercalibrationtofieldpyrheliometershavingfieldanglesbothlessthan5orgreaterthan6.5,itwillbenecessarytoemploytheproceduredefinedbyAngstromandRodhe.1.5Thistestmethodrequiresthatthespectralresponseoftheabsolutecavitychosenastheprimarystandardpyrheliometerbenonselectiveovertherangefrom0.3to10-mwavelength.Bothreferenceandfieldpyrheliometerscoveredbythistestmethodshallbenonselectiveoverarangefrom0.3to4-mwavelength.1.6Theprimaryandsecondaryreferencepyrheliometersshallnotbefieldinstrumentsandtheirexposuretosunlightshallbelimitedtocalibrationorintercomparisons.Thesereferenceinstrumentsshallbestoredinanisolatedcabinetorroomequippedwithstandardlaboratorytemperatureandhumiditycontrol.Note2Atalaboratorywherecalibrationsareperformedregularly,itisadvisabletomaintainagroupoftwoorthreesecondaryreferencepyrheliometersthatareincludedineverycalibration.Theseserveascontrolstodetectanyinstabilityorirregularityinthestandardreferencepyrheliometer.1.7Thistestmethodisapplicabletocalibrationproceduresusingnaturalsunshineonly.
【中国标准分类号】:F12
【国际标准分类号】:27_160
【页数】:11P.;A4
【正文语种】: