【英文标准名称】:Surfaceacousticwave(SAW)resonators.Guidetotheuse
【原文标准名称】:表面声波谐振器.使用指南
【标准号】:BSEN61019-2-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2005-10-17
【实施或试行日期】:2005-10-17
【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】:使用;电气工程;电子设备及元件;指导手册;使用说明;压电器件;特性;谐振器;锯齿波谐振器;规范;规范(验收);表面声波;应用
【英文主题词】:applications;electricalengineering;electronicequipmentandcomponents;guidebooks;instructionsforuse;piezoelectricdevices;properties;resonators;saw-resonators;specification;specification(approval);surfaceacousticwaves;use
【摘要】:SAWresonatorsarenowwidelyusedinavarietyofapplications:VCRRF-converters,CATVlocaloscillators,measuringequipment,remotecontrolandsoon.WhileSAWresonatorsarealsoappliedtonarrowbandwidthfilters,thescopeofthispartofIEC61019islimitedtoSAWresonatorsforoscillatorapplicationsItisnottheaimofthisguidetoexplaintheory,nortoattempttocoveralltheeventualitieswhichmayariseinpracticalcircumstances.Thisguidedrawsattentiontosomeofthemorefundamentalquestions,whichshouldbeconsideredbytheuserbeforeheplacesanorderforaSAWresonatorforanewapplication.Suchaprocedurewillbetheuser'sinsuranceagainstunsatisfactoryperformance.Standardspecifications,suchasthoseoftheIECofwhichthisguideformsapart,andnationalspecificationsordetailspecificationsissuedbymanufacturers,willdefinetheavailablecombinationsofresonancefrequency,qualityfactor,motionalresistance,parallelcapacitance,etc.ThesespecificationsarecompiledtoincludeawiderangeofSAWresonatorswithstandardizedperformances.Itcannotbeover-emphasizedthattheusershould,whereverpossible,selecthisSAWresonatorsfromthesespecifications,whenavailable,evenifitmayleadtomakingsmallmodificationstohiscircuittoenabletheuseofstandardresonators.Thisappliesparticularlytotheselectionofthenominalfrequency.
【中国标准分类号】:L21
【国际标准分类号】:31_140
【页数】:30P.;A4
【正文语种】:英语
【英文标准名称】:Batterychargecontrollersforphotovoltaicsystems-Performanceandfunctioning
【原文标准名称】:光伏系统用蓄电池充电控制器.性能和功能
【标准号】:IEC62509-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-12
【实施或试行日期】:2010-12
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/TC82
【标准类型】:()
【标准水平】:()
【中文主题词】:蓄电池充电器;电池放电;控制器;限流的;定义(术语);电气工程;测量技术;光电器件;电功率测量;太阳能;太阳能动力;试验
【英文主题词】:Batterychargers;Batterycharging;Controllers;Currentlimiting;Definitions;Electricalengineering;Measuringtechniques;Photovoltaics;Powermeasurement(electric);Solarenergy;Solarpower;Testing
【摘要】:ThisInternationalStandardestablishesminimumrequirementsforthefunctioningandperformanceofbatterychargecontrollers(BCC)usedwithleadacidbatteriesinterrestrialphotovoltaic(PV)systems.ThemainaimsaretoensureBCCreliabilityandtomaximisethelifeofthebattery.ThisstandardshallbeusedinconjunctionwithIEC62093,whichdescribestestandrequirementsforintendedinstallationapplication.Inadditiontothebatterychargecontrolfunctions,thisStandardaddressesthefollowingbatterychargecontrolfeatures:·photovoltaicgeneratorchargingofabattery,·loadcontrol,·protectionfunctions,·interfacefunctions.ThisstandarddoesnotcoverMPPTperformance,butitisapplicabletoBCCunitsthathavethisfeature.Thisstandarddefinesfunctionalandperformancerequirementsforbatterychargecontrollersandprovidesteststodeterminethefunctioningandperformancecharacteristicsofchargecontrollers.ItisconsideredthatIEC62093isusedtodeterminetheconstructionrequirementsfortheintendedinstallationwhichincludesbutisnotlimitedtoaspectssuchastheenclosure,physicalconnectionsturdinessandsafety.Thisstandardwaswrittenforleadacidbatteryapplications.ItisnotlimitedintermsoftheBCCcapacitytowhichitmaybeapplied,however,therequirementsfortestequipmentwhenappliedtoBCCwithhighvoltageorcurrent,forexample,greaterthan120Vor100A,maybedifficulttoachieve.TheseapproachesmaybeapplicabletootherpowersourcesandotherbatterytechnologieslikeNi-Cdbatteriesbyusingthecorrespondingvaluesofcellvoltages.
【中国标准分类号】:F12
【国际标准分类号】:27_160
【页数】:58P.;A4
【正文语种】:
基本信息
| 标准名称： | 骨接合植入物 金属带锁髓内钉 |
| 发布部门： | 国家食品药品监督管理局 |
| 发布日期： | 2011-12-31 |
| 实施日期： | 2013-06-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2013-06-01 |
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