BS EN 60444-9-2007 石英晶体元件参数测量.压电晶体元件寄生振荡测量

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【英文标准名称】:Measurementofquartzcrystalunitparameters-Measurementofspuriousresonancesofpiezoelectriccrystalunits
【原文标准名称】:石英晶体元件参数测量.压电晶体元件寄生振荡测量
【标准号】:BSEN60444-9-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-05-31
【实施或试行日期】:2007-05-31
【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】:晶体(电子);电气工程;电子工程;滤波器晶体;阻抗;测量;测量技术;参数;压电器件;共振频率;谐振器
【英文主题词】:Crystals(electronic);Electricalengineering;Electronicengineering;Filtercrystals;Impedance;Interferences;Measurement;Measuringtechniques;Parameters;Piezoelectricdevices;Resonantfrequency;Resonators
【摘要】:ThispartofIEC60444describestwomethodsfordeterminingthespurious(unwanted)modesofpiezoelectriccrystalresonators.Itextendsthecapabilitiesandimprovesthereproducibilityandaccuracycomparedtopreviousmethods.ThepreviousmethodsdescribedinIEC60283(1968)werebasedontheuseofameasuringbridge,whichappliestonon-traceablecomponentssuchasvariableresistorsandahybridtransformer,whicharenolongercommerciallyavailable.MethodA(Fullparameterdetermination)FullparameterdeterminationallowsthedeterminationoftheequivalentparametersofthespuriousresonancesandisbasedonthemethodsdescribedinIEC60444-5usingthesamemeasurementequipment.Itisthepreferredmethod,whichcanbeappliedtothemeasurementoflowandmediumimpedancespuriousresonancesuptoseveralkΩ.MethodB(Resistancedetermination)Resistancedeterminationshouldbeusedforthedeterminationofhighimpedancespuriousresonancesasspecified,forexampleforcertainfiltercrystals.ItusesthesametestequipmentasmethodAinconjunctionwithatestfixture,whichconsistsofcommerciallyavailablemicrowavecomponentssuchasa180°hybridcoupleranda10dBattenuator,whicharewell-definedina50Ωenvironment.Thismethodisanimprovementtothe“referencemethod”oftheobsoleteIEC60283.
【中国标准分类号】:L21
【国际标准分类号】:31_140
【页数】:18P.;A4
【正文语种】:英语


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【英文标准名称】:Railwayapplications-Suspensioncomponents-Hydraulicdampers;EnglishversionofDINEN13802
【原文标准名称】:铁路设施.悬挂部件.液压减震器
【标准号】:DINEN13802-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:螺钉;规范(验收);使用条件;质量;弹性;固定件;设计;铁路车辆零部件;弹簧元件;液压控制系统;压缩弹簧;螺旋弹簧;减振装置;冲击吸收器;阻振器;附件;铁路设施;铁路;检验;减震弹簧;钢制弹簧;弹簧;无动力铁路车辆;定义;紧固件;气流调节器;螺旋压力弹簧;试验;铁道车辆;尺寸;质量保证;材料;特性;作标记
【英文主题词】:Attachments;Compressionsprings;Dampers;Dampingdevices;Definition;Definitions;Design;Dimensions;Fasteners;Fixings;Helicalcompressionspring;Helicalsprings;Hydrauliccontrolsystems;Inspection;Marking;Materials;Non-poweredrailwayvehicles;Operatingconditions;Properties;Quality;Qualityassurance;Railwayapplications;Railwayvehiclecomponents;Railwayvehicles;Railways;Screws(bolts);Shockabsorbers;Shockabsorbingsprings;Specification(approval);Springelements;Springiness;Springs;Steelsprings;Testing;Vibrationdampers
【摘要】:Thisdocumentappliestohydraulicdampers(excludingendmountings)usedonrailvehicles.Thedamperscoveredinthisstandardinclude:--dampersthatcontrolthedynamicbehaviourofvehicle:--suspensiondampers,(e.g.primaryverticaldampers,secondaryverticaldampersandsecondarylateraldampers),--yawdampers,--rolldampers,--inter-vehicledampers,--dampersthatcontrolthedynamicbehaviourofmechanicalsystems:--pantographdampers,--etc.Allrelevantterminologywhichisspecifictothesubjectisdefinedinthisdocument.
【中国标准分类号】:S11
【国际标准分类号】:45_040
【页数】:43P.;A4
【正文语种】:英语


【英文标准名称】:Termsandnomenclatureforcoresmadeofmagneticallysoftferrites-Part3:Guidelinesontheformatofdataappearinginmanufacturers'cataloguesoftransformerandinductorcores
【原文标准名称】:磁性软铁氧体制磁芯的术语和命名.第3部分:写入变压器和电感器磁芯制造厂产品目录中的数据格式指南
【标准号】:IEC60401-3-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-10
【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/TC51
【标准类型】:()
【标准水平】:()
【中文主题词】:渗透率;测量条件;电力电子学;材料;数据格式;产品数据;计量学;目录;芯;术语;定义;测量;指导手册;温度;电气工程;电子电源
【英文主题词】:Catalogues;Cores;Dataformats;Definitions;Electricalengineering;Guidebooks;Materials;Measurement;Measurementconditions;Metrology;Nomenclature;Permeability;Powerelectronics;Powerrange;Productdata;Temperature
【摘要】:Givesguidanceforauniformmethodofpresentationforthepropertiesofmagneticallysoftferritematerialsandmeasuringconditionsunderwhichtheyaretobedetermined.Isintendedforuseinmanufacturers'cataloguesoftransformerandinductorcor
【中国标准分类号】:H53
【国际标准分类号】:29_100_10
【页数】:24P.;A4
【正文语种】:英语