【英文标准名称】:Chemicalanalysisofrefractoriescontainingalumina,zirconiaandsilica-Refractoriescontaining5%to45%ofZrO2(alternativetotheX-rayfluorescencemethod)-Part1:Apparatus,reagentsanddissolution.
【原文标准名称】:含有氧化铝、氧化锆和硅石的耐火材料的化学分析.含有5%～45%ZrO2的耐火材料(可选择X射线荧光法).第1部分:仪器、试剂和溶解
【标准号】:NFB49-424-1-2008
【标准状态】:现行
【国别】:法国
【发布日期】:2008-08-01
【实施或试行日期】:2008-08-02
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:AES;铝;氧化铝;分析;氧化钙;氧化钙含量;陶瓷;化学分析和测试;化学试剂;氧化铬;氧化铬含量;定义;测定;含量测定;测量规程;分解法;溶解方法;发射分光光度测定法;燃烧原子吸收光谱测定法;感应耦合等离子体;氧化铁含量;氧化铁;浇桶分析;氧化镁含量;氧化镁;质量浓度;材料;材料测试;方法;分析方法;普通陶瓷;氧化物;氧化钾;试剂;耐熔的;耐火材料;耐熔制品;操作程序;硅酸盐;硅;二氧化硅;氧化钠;溶液;标准溶液;试验结果;测试;氧化钛;验证;锆
【英文主题词】:AES;Aluminium;Aluminiumoxide;Analysis;Calciumoxide;Calciumoxidecontent;Ceramics;Chemicalanalysisandtesting;Chemicalreagents;Chromeoxides;Chromiumoxidecontent;Definition;Determination;Determinationofcontent;Determinationprocedures;Digestionmethod;Dissolutionmethod;Emissionspectrophotometry;Flameatomicabsorptionspectrometry;ICP;Ironoxidecontent;Ironoxides;Ladleanalysis;Magnesiumoxidecontent;Magnesiumoxides;Massconcentration;Materials;Materialstesting;Methods;Methodsofanalysis;Ordinaryceramics;Oxides;Potassiumoxides;Reagents;Refractory;Refractorymaterials;Refractoryproducts;Sequenceofoperations;Silicate;Silicon;Silicondioxide;Siliconoxide;Sodiumoxides;Solutions;Standardsolutions;Testresults;Testing;Titaniumoxide;Verification;Zirconium
【摘要】:
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:21P;A4
【正文语种】:其他


【英文标准名称】:Opticalamplifiers-Testmethods-Polarizationmodedispersionparameter-Poincaresphereanalysismethod
【原文标准名称】:光学放大器.试验方法.偏振模式分散参数.Poincare球面分析方法
【标准号】:BSEN61290-11-2-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-08-19
【实施或试行日期】:2005-08-19
【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】:放大器;半导体;偏振;光学装置;分散;纤维光学;纤维;光学;光弹法;光波导;电气工程;POINCAR;波长;试验;分析;数学计算
【英文主题词】:Amplifiers;Analysis;Dispersion;Electricalengineering;Fibreoptics;Fibres;Mathematicalcalculations;Opticaldevices;Opticalwaveguides;Optics;Photoelasticmethods;Poincaré;Polarization(wavephysics);Semiconductors;Testing;Wavelengths
【摘要】:ThispartofIEC61290appliestoallcommerciallyavailableopticalamplifiers(OAs)includingopticalfibreamplifiers(OFAs)usingactivefibresandsemiconductoropticalamplifiers(SOAs)usingsemiconductorgainmedia.Polarizationmodedispersion(PMD)causesanopticalpulsetospreadinthetimedomain.Thisdispersioncouldimpairtheperformanceofatelecommunicationssystem.Theeffectcanberelatedtodifferentialgroupvelocityandcorrespondingarrivaltimesofdifferentpolarizationcomponentsofthesignal.Foranarrowbandsource,theeffectcanberelatedtoadifferentialgroupdelay(DGD)betweenpairsoforthogonallypolarizedprincipalstatesofpolarization(PSP).ThistestmethoddescribesaprocedureformeasuringthePMDofOAs.ThemeasurementresultisobtainedfromthemeasurementofthenormalisedStokesparametersattwocloselyspacedwavelengths.ThemathematicalbasistogetherwithanexampleofcalculationforthePoincaresphereanalysis(PSA)methodtocalculatePMDisprovidedinthetechnicalreportIEC61292-5.Themethoddescribedhereinhasbeenshowntobeimmunetopolarization-dependentgain(PDG)andpolarization-dependentloss(PDL)uptoapproximately1dB[].AlthoughthePSA,inpractice,isapplicabletounpumped(thatis,unpowered)OAs,thePSAtechniqueinthisstandardappliestopumped(thatis,powered)OAsonly.NOTEAllnumericalvaluesfollowedby()aresuggestedvaluesforwhichthemeasurementisassured.Othervaluesmaybeacceptablebutshouldbeverified.
【中国标准分类号】:M33
【国际标准分类号】:33_180_30
【页数】:18P.;A4
【正文语种】:英语