【英文标准名称】:StandardPracticeforSecondaryCalibrationofAcousticEmissionSensors
【原文标准名称】:声发射传感器的二次校准标准实施规程
【标准号】:ASTME1781-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E07.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:acousticemission;acousticemissionsensorcalibration;acousticemissionsensorsecondarycalibration;sensorcalibration;Acousticemission(AE)testing;Calibration--acousticemissionanalysisinstrumentation;Secondarycalibration/testing;SUT(se
【摘要】:Thepurposeofthispracticeistoenablethetransferofcalibrationfromsensorsthathavebeencalibratedbyprimarycalibrationtoothersensors.1.1Thispracticecoversrequirementsforthesecondarycalibrationofacousticemission(AE)sensors.Thesecondarycalibrationyieldsthefrequencyresponseofasensortowavesofthetypenormallyencounteredinacousticemissionwork.Thesourceproducingthesignalusedforthecalibrationismountedonthesamesurfaceofthetestblockasthesensorundertesting(SUT).Rayleighwavesaredominantundertheseconditions;thecalibrationresultsrepresentprimarilythesensor''ssensitivitytoRayleighwaves.Thesensitivityofthesensorisdeterminedforexcitationwithintherangeof100kHzto1MHz.Sensitivityvaluesareusuallydeterminedatfrequenciesapproximately10kHzapart.Theunitsofthecalibrationarevoltsperunitofmechanicalinput(displacement,velocity,oracceleration).1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N65
【国际标准分类号】:
【页数】:7P.;A4
【正文语种】:英语


【英文标准名称】:Distributionautomationusingdistributionlinecarriersystems-Part4-33:Datacommunicationprotocols;datalinklayer;connectionorientedprotocol(IEC61334-4-33:1998);GermanversionEN61334-4-33:1998,textinEnglish
【原文标准名称】:利用配电线路载波系统实现配电自动化.第4-33部分:数据通信协议.数据链接层.连接定向协议
【标准号】:EN61334-4-33-1998
【标准状态】:现行
【国别】:
【发布日期】:1999-08
【实施或试行日期】:1999-08-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:链路层;数据链层;连接模式;逻辑链路控制;架空线;协议;数据通信;逻辑控制;遥控技术;通信系统;顶梁系统;配线;传输协议;信息处理
【英文主题词】:Communicationsystems;Connection-mode;Controltechnology;Datacommunication;Datalinklayers;Distributionlines;Girdersystem;Informationprocessing;Linklayers;LLC;Logicalcontrol;Overheadpowerlines;Protocols;Remotecontroltechnology;Transmissionprotocol
【摘要】:
【中国标准分类号】:F21
【国际标准分类号】:33_040_60
【页数】:29P.;A4
【正文语种】:英语