IEC 60487-3-4-1982 地面无线电中继系统所用设备的测量方法第3部分:模拟系统第4节:频分多路传输的测量
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【英文标准名称】:Methodsofmeasurementforequipmentusedinterrestrialradio-relaysystems.Part3:Simulatedsystems.SectionFour-Measurementsforf.d.m.transmission
【原文标准名称】:地面无线电中继系统所用设备的测量方法第3部分:模拟系统第4节:频分多路传输的测量
【标准号】:IEC60487-3-4-1982
【标准状态】:现行
【国别】:国际
【发布日期】:1982
【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/TC102
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电中继系统;复接;无线电设备;微波链路;无线电工程;无线电通信;电信;声学测量;测量技术;微波;电气工程;测量仪器;定义;测量;模拟;无线电通信链路;通信链路;信号传输;传输;电视;电话;电学测量;频率
【英文主题词】:Acousticmeasurement;Definitions;Electricalengineering;Electricalmeasurement;Frequencies;Measurement;Measuringinstruments;Measuringtechniques;Microwavelinks;Microwaves;Multiplexing;Radioengineering;Radioequipment;Radiolinks;Radiocommunication;Radio-relaysystems;Signaltransmission;Simulation;Telecommunication;Telecommunicationlinks;Telephony;Television;Transmission
【摘要】:Dealswithbaseband-to-basebandmeasurementsofthenoiseperformanceofsimulatedradio-relaysystemsusedforfrequencydivisionmultiplextelephony.Themeasurementscoveredaresignal-relatedandareadditionaltothoseinIECPublicationIEC487-3-2
【中国标准分类号】:M36;M74
【国际标准分类号】:33_060_30
【页数】:29P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforAnalysisofIn-ServiceLubricantsUsingaParticularFive-Part(DielectricPermittivity,Time-ResolvedDielectricPermittivitywithSwitchingMagneticFields,LaserParticleCounter,MicroscopicDebrisAnalysis,andOrbitalViscome
【原文标准名称】:使用一种特殊的5部分法(介电常数,在变换磁场内的时间分辨介电常数,激光离子计数器,显微残渣分析和轨道粘度计)分析使用中的润滑油的标准规程
【标准号】:ASTMD7416-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.96
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:条件控制
【英文主题词】:conditionmonitoring;contaminationstatus;debrisanalysis;dielectricpermittivity;ferrousdensity;ferrousindex;in-serviceoil;machineryhealth;particlecounting;ppmdistribution;time-resolved-dielectric;viscosity;wearstatus;Contamination;D
【摘要】:In-plantOilAnalysis8212;Theparticularfive-partintegratedtesterpracticeisprimarilyusedbyplantmaintenancepersonneldesiringtoperformon-siteanalysisofas-receivedandin-servicelubricatingoils.DetectCommonLubricationProblems8212;Thesoftwareapplicationinterpretsdatafromintegrationofmultiplesensingtechnologiestodetectcommonlubricationproblemsfrominadvertentmixingofdissimilarlubricantviscositygradesandfromparticulateormoisturecontamination.Theredundantviewsofferrousparticulates(sensor2),allparticulateslargerthan4-x03BC;m(sensor3),andallsolidparticulateslargerthanfilterpatchporesize(patchmaker)providesscreeningforoilwettedmechanicalsystemfailuremechanismsfromincipienttocatastrophicstages.SupportedbyOff-SiteLabAnalysis8212;Theparticularfive-partintegratedtesterisnormallyusedinconjunctionwithanoff-sitelaboratorywhenexploringtheparticularnatureofanalarmingoilsample.Anoff-sitelaboratoryshouldbeconsultedforappropriateadditionaltests.1.1Thispracticecoversproceduresforanalysisofin-servicelubricantsamplesusingaparticularfive-part(dielectricpermittivity,time-resolveddielectricpermittivitywithswitchingmagneticfields,laserparticlecounter,microscopicdebrisanalysis,andorbitalviscometer)integratedtestertoassessmachinewear,lubricationsystemcontamination,andlubricantdielectricpermittivityandviscosity.Analyzedresultstriggerrecommendedfollow-onactionswhichmightincludeconductingmoreprecisestandardmeasurementsatalaboratory.Wearstatus,contaminationstatus,andlubricantdielectricpermittivityandviscositystatusarederivedquantitativelyfrommultipleparametersmeasured.1.2Thispracticeissuitablefortestingincomingandin-servicelubricatingoilsinviscositygrades32mm2/sat40x00B0;Cto680mm2/sat40x00B0;Chavingpetroleumorsyntheticbasestock.Thispracticeisintendedtobeusedfortestingin-servicelubricantsamplescollectedfrompumps,electricmotors,compressors,turbines,engines,transmissions,gearboxes,crushers,pulverizers,presses,hydraulicsandsimilarmachineryapplications.Thispracticeaddressesoperationandstandardizationtoensurerepeatableresults.1.3Thispracticeisnotintendedforusewithcrudeoils.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:75_100
【页数】:13P.;A4
【正文语种】:
【英文标准名称】:Magnesiumgalvanicanodesforcathodicprotection
【原文标准名称】:阴极保护用镁电镀阳极
【标准号】:JISH6125-1995
【标准状态】:现行
【国别】:日本
【发布日期】:1995-06-01
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonNon-FerrousMetals
【标准类型】:()
【标准水平】:()
【中文主题词】:有色金属;阳极;镁;防腐蚀;镀锌;金属加工;电极;阳极保护
【英文主题词】:galvanizing;metalworking;;
【摘要】:この規格は,陰極防食に用いるマグネシウム陽極(以下,陽極という。)について規定する。
【中国标准分类号】:A29
【国际标准分类号】:77_150_20
【页数】:5P;A4
【正文语种】:日语
