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【英文标准名称】:Opticalamplifiers-Testmethods-Part10-4:Multichannelparameters-Interpolatedsourcesubtractionmethodusinganopticalspectrumanalyser
【原文标准名称】:光纤放大器.试验方法.第10-4部分:多通道参数.用光谱分析仪的内插辐射体减少法
【标准号】:IEC61290-10-4-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC86C
【标准类型】:()
【标准水平】:()
【中文主题词】:放大器;应用;电气工程;光纤;总规范;多通道的;光波导;光学;功率放大器;电功率测量;前置放大器;产品规范;特性;规范;光谱分析
【英文主题词】:Amplifiers;Applications;Calibration;Electricalengineering;Fibreoptics;Fibres;Genericspecification;Measurement;Multichannels;Multiplexers;Opticalwaveguides;Optics;Poweramplifiers;Powermeasurement(electric);Preamplifiers;Productspecifications;Properties;Raman;Specification;Spectralanalysis
【摘要】:ThispartofIEC61290appliestoallcommerciallyavailableopticalamplifiers(OAs)andopticallyamplifiedsubsystems.ItappliestoOAsusingopticallypumpedfibres(OFAsbasedoneitherrare-earthdopedfibresorontheRamaneffect),semiconductoropticalamplifiers(SOAs)andwaveguides(POWA).Theobjectofthisstandardistoestablishuniformrequirementsforaccurateandreliablemeasurements,bymeansoftheinterpolatedsourcesubtractionmethodusinganopticalspectrumanalyzer.ThefollowingOAparameters,asdefinedinClause3ofIEC61291-1,aredetermined:?channelgain,and?channelsignal-spontaneousnoisefigure.Thismethodiscalledinterpolatedsourcesubtraction(ISS)becausetheamplifiedspontaneousemission(ASE)ateachchannelisobtainedbyinterpolatingfrommeasurementsatasmallwavelengthoffsetaroundeachchannel.Tominimizetheeffectofsourcespontaneousemission,theeffectofsourcenoiseissubtractedfromthemeasurednoise.TheaccuracyoftheISStechniquedegradesathighinputpowerlevelduetothespontaneousemissionfromthelasersource(s).AnnexAprovidesguidanceonthelimitsofthistechniqueforhighinputpower.Anadditionalsourceofinaccuracyisduetointerpolationerror.AnnexAprovidesguidanceonthemagnitudeofinterpolationerrorforatypicalamplifierASEversuswavelengthcharacteristic.NOTE1Allnumericalvaluesfollowedby(?)aresuggestedvaluesforwhichthemeasurementisassured.Othervaluesmaybeacceptablebutshouldbeverified.NOTE2GeneralaspectsofnoisefiguretestmethodsarereportedinIEC61290-3.
【中国标准分类号】:M33
【国际标准分类号】:33_180_30
【页数】:38P.;A4
【正文语种】:英语


【英文标准名称】:Non-destructivetesting-X-raydiffractionfrompolycrystallineandamorphousmaterials-Instruments
【原文标准名称】:无损检验.多晶和非晶材料的X射线衍射.仪器
【标准号】:BSEN13925-3-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-07-09
【实施或试行日期】:2005-07-09
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:方法;参数;非晶体;工艺实施;测量;定义;材料;试验;试验装置;材料试验;安全要求;检验;规格试验;试件;无损检验;质量保证;射线摄影;X射线衍射;分析装置;测量装置;物料参量;X射线衍射分析;方法试验;无损;衍射计;试验设备
【英文主题词】:Amorphous;Apparatusforanalysis;Definition;Definitions;Diffractometers;Inspection;Materialparameters;Materials;Materialstesting;Measurement;Measuringdevices;Methodtesting;Methods;Non-destructive;Non-destructivetesting;Parameters;Qualityassurance;Radiographs;Ratingtests;Runoftheprocess;Safetyrequirements;Testequipment;Testpieces;Testing;Testingdevices;X-raydiffraction;X-raydiffractionanalysis
【摘要】:ThisdocumentsetsoutthecharacteristicsofinstrumentsusedforX-raypowderdiffraction("powder"asdefinedinEN13925-1:2003,Clause5)asabasisfortheircontrolandhencequalityassuranceofthemeasurementsmadebythistechnique.Performancetestingindicatorsaregivenfordiffractometerperformancetesting.DifferenttypesandmakesofX-raypowderdiffractometervaryconsiderablyintheirdesignandintendedfieldsofapplication.Thisdocumentattemptstocoverasmuchofthisrangeaspossiblebykeepingtocommonprinciples.Tomakethestandardmorereadilyapplicable,theBragg-Brentanoconfigurationisaddressedinmostdetailbecauseofitswideuse.Additionalconsiderationsandadaptationsmaybenecessarytocoversometypesofinstrumentsorconfigurationandsomefieldsofapplication.SomeofthesetypesofinstrumentaredescribedinAnnexB.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:44P.;A4
【正文语种】:英语