BS EN 60444-8-2003 石英晶体元件参数的测量.表面安装石英晶体元件用试验装置

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【英文标准名称】:Measurementofquartzcrystalunitparameters-Testfixtureforsurfacemountedquartzcrystalunits
【原文标准名称】:石英晶体元件参数的测量.表面安装石英晶体元件用试验装置
【标准号】:BSEN60444-8-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-11-19
【实施或试行日期】:2003-11-19
【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】:表面安装;晶体谐振器;石英晶体;压电器件;电气工程;测量;电子设备及元件;试验
【英文主题词】:Crystalresonators;Crystals(electronic);Electricalengineering;Electronicequipmentandcomponents;Equivalentcircuits;Frequencymeasurement;Frequencyranges;Measurement;Measuringaccuracy;Measuringranges;Measuringtechniques;Piezoelectricdevices;Quartzcrystals;Resonance;Resonanceresistance;Resonantfrequency;SMD;Surfacemounting;Testset-ups;Testing;Zerophase
【摘要】:ThispartofIEC60444explainsthetestfixturethatallowstheaccuratemeasurementofresonancefrequency,resonanceresistance,andequivalentelectricalcircuitparametersofaleadlesssurfacemountedquartzcrystalunitsusingzerophasetechniqueasspecifiedinIEC60444-4andIEC60444-5.Anequivalentcircuitconstantandtheapplicationfrequencyrangeobtainedbyusingthetestfixturearethenshown.Inaddition,thisisappliedtotheenclosureshowninIEC61240asacrystalunitwithoutleadwires.AnequivalentcircuitofthetestfixtureandanelectricvaluesarebasedonIEC60444-1andIEC60444-4.Therangeofloadcapacitanceis10pFormore.CalibrationofthemeasurementsystemandCLadapterboardisexplainedhereinafter.Thisdocumentappliestothetestfixturethatallowstheaccuratemeasurementofresonancefrequency,resonanceresistance,parallelcapacitanceC0,motionalcapacitanceC1,andmotionalinductanceL1ofthecrystalunitoverthefrequencyrangefrom1MHzto150MHzusinganautomaticnetworkanalyzer,basedonIEC60444-5.
【中国标准分类号】:L21
【国际标准分类号】:31_140
【页数】:14P.;A4
【正文语种】:英语


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【英文标准名称】:Mobileroadconstructionmachinery-Safety-Commonrequirements
【原文标准名称】:移动式筑路机械.安全性.一般要求
【标准号】:BSEN500-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-11-30
【实施或试行日期】:2006-11-30
【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】:事故预防;建筑机械;建筑;定义;设计;人类工效学;总论;图形符号;操纵;危害;保健;维修;作标记;机械工程;道路建筑;道路标记机械;道路;安全;安全措施;安全要求;规范(验收);运输;可移动的;可运输结构;工作地点
【英文主题词】:
【摘要】:1.1ThispartofEN500specifiesthecommonsafetyrequirementsformobileroadconstructionmachinery1).TheEN500seriesisapplicabletomobileroadconstructionmachineryaslistedinAnnexA.Whennospecificstandardexists,EN500-1applies.Itspecifiescommonrequirementsforthedesignandconstructionofmobileroadconstructionmachineryinordertoprotectworkersfromaccidentsandhealthhazardswhichcouldoccurduringoperation,loading,transportandmaintenance.Additionalspecificrequirementsforcertaintypesofmobileroadconstructionmachineryaregiveninparts2to4and6ofthisstandard.Thispartofthisstandardgivessafetyrequirementsforalltypesofmobileroadconstructionmachineryandshallbeusedinconjunctionwithoneoftheparts2to4and6.Thesemachine-specificpartsdonotrepeattherequirementsfrompart1butaddtoorreplacetherequirementsforthetypeofmobileroadconstructionmachineryinquestion.Machine-specificrequirementsinparts2to4and6takeprecedenceovertherespectiverequirementsofthisstandard.Fortypesofmobileroadconstructionmachinerynotdealtwithinparts2to4and6,EN500-1applies.1.2ThisEuropeanStandarddealswithallsignificanthazards,hazardoussituationsandeventsrelevanttomobileroadconstructionmachinery,whentheyareusedasintendedandunderconditionsofmisusewhicharereasonablyforeseeable(seeClause4).ThisEuropeanStandardspecifiestheappropriatetechnicalmeasurestoeliminateorreducerisksarisingfromthesignificanthazardsasspecifiedinClause4.1.3ThisEuropeanStandardappliestomachineswhicharemanufacturedafterthedateofpublicationofthisEuropeanStandardbyCEN.
【中国标准分类号】:P97
【国际标准分类号】:93_080_10
【页数】:50P;A4
【正文语种】:英语