DIN 69051 T.5-1982 机床.滚珠丝杠传动.滚珠螺母的连接尺寸
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【英文标准名称】:Machinetools;Ballscrews;Connectingdimensionsforballnuts
【原文标准名称】:机床.滚珠丝杠传动.滚珠螺母的连接尺寸
【标准号】:DIN69051T.5-1982
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:InformationProcessingSystemsTechnicalReport-Object-OrientedExtentionstoPascal(NOTANAMERICANNATIONALSTANDARD)
【原文标准名称】:信息处理系统的技术报告.Pascal语言面向目标范围(非美国国家标准)
【标准号】:ANSIX3/TR-13-1998
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:pascal;programminglanguages;informationprocessing
【摘要】:
【中国标准分类号】:L74
【国际标准分类号】:35_060
【页数】:
【正文语种】:英语
【英文标准名称】:Methodsofmeasurementforradiotransmitters.Performancecharacteristicsofterrestrialdigitaltelevisiontransmitters
【原文标准名称】:无线电广播发射机测量方法.地面数字电视发射机的工作特性
【标准号】:BSEN62273-1-2007
【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】:广播工程;广播;特征;通信;传播技术;条件;定义(术语);数字的;数字广播;数字连接;数字数据;数字工程;数字无线电线路;数字电视;电气工程;电学测量;频率;频率范围;互相调制;测量;测量技术;测量方法;调制;性能;功率输出;无线电电路;无线电工程;无线电装置;无线电发射机;无线电通信;额定输出功率;声音广播发射;规范(验收);电讯;电信传输法;电信;电视发射机;陆地的;测试信号;测试;传输特征;传输性能;传输特性;发射机;发射功率;
【英文主题词】:Broadcastengineeering;Broadcasting;Characteristics;Communication;Communicationtechnology;Conditions;Definitions;Digital;Digitalbroadcasting;Digitalconnections;Digitaldata;Digitalengineering;Digitalradiolinks;Digitaltelevision;Electricalengineering;Electricalmeasurement;Frequencies;Frequencyranges;Intermodulation;Measurement;Measuringtechniques;Methodsformeasuring;Modulation;Performance;Poweroutput;Radiocircuits;Radioengineering;Radiosystems;Radiotransmitters;Radiocommunication;Ratedoutputpower;Sound-broadcastingemissions;Specification(approval);Telecommunication;Telecommunicationtransmissionmethods;Telecommunications;Televisiontransmitters;Terrestrial;Testsignals;Testing;Transmissioncharacteristics;Transmissionperformance;Transmissionperformances;Transmitters;Transmittingpower;
【摘要】:ThispartofIEC62273givestheconditionsformeasuringtheperformanceparametersofterrestrialdigitaltransmittersandforfacilitatingthecomparisonofmeasurementswhicharecarriedoutbydifferentpersonnel.Itcontainsdetailsofspeciallyselectedmethodsfordeterminingthemostimportantperformanceparametersofdigitaltransmitters.Themeasurementmethodsdescribedapplytoalimitednumberofperformanceparameters,i.e.thosewhichcangiverisetoambiguousinterpretationduetotheuseofdifferentmethodsandconditions.Theyareneitherrestrictivenormandatory:measurementscanbechosenforeachparticularcase.Ifnecessary,additionaltestscanbecarriedoutbuttheyshallcomplywiththosestandardswhichhavebeenestablishedbyotherstudygroups,subcommitteesoftheIECorotherinternationalorsuitablyaccreditedorganizations.Nolimitshavebeenassignedtoquantifyacceptablerangesofperformanceparameters.Thesearejudgedtobeproperlyincludedinthetechnicalspecificationsforindividualtransmitters;however,thetermsandthemannerusedtoquantifythemshouldideallybethosedescribedinafutureIECpublication.Themeasurementmethodsdescribedinthisstandardareintendedfortypeapprovaltests.Howevertheycanequallywellapplytoacceptancetestsmeasurementsandqualitycontroltestseitherinfactoriesoronsite.Testsignalsareusedtomeasureperformanceparametersforbothdigitalandanalogueterrestrialtransmitters.Theirelectroniccharacteristicsandtheirassociatedperformanceparametersarewidelyunderstood.Thetestsignalsaremeasuredaftertheyhavegonethroughthetransmitterequipmenttodetermineiftheirdegradationiswithintherequiredqualitycriteria.ThisstandarddoesnotgointoanydetailregardingMPEG2signalsorDVBprocessesnordoesitdealwithdigitalsignalprocessing.
【中国标准分类号】:M74
【国际标准分类号】:33_060_20;33_170
【页数】:42P.;A4
【正文语种】:英语
