IEC 60869-1-2012 光纤互连设备和无源组件.光纤无源功率控制装置.第1部分:总规范
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【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Fibreopticpassivepowercontroldevices-Part1:Genericspecification
【原文标准名称】:光纤互连设备和无源组件.光纤无源功率控制装置.第1部分:总规范
【标准号】:IEC60869-1-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-12
【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/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:衰减;元部件;连接件;定义;电气工程;评定;光纤;总规范;光波导;无源的;性能;质量;质量评定;质量保证;规范;试验
【英文主题词】:Attenuators;Components;Connections;Definitions;Electricalengineering;Evaluations;Fibreoptics;Genericspecification;Opticalwaveguides;Passive;Properties;Quality;Qualityassessment;Qualityassurance;Specification;Testing
【摘要】:
【中国标准分类号】:
【国际标准分类号】:33_180_20
【页数】:69P;A4
【正文语种】:英语
【英文标准名称】:Non-destructivetesting-Ultrasonicinspection-Characterizationofsearchunitandsoundfield
【原文标准名称】:无损检测超声波探伤探测仪和声场特性
【标准号】:ISO10375-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC135
【标准类型】:()
【标准水平】:()
【中文主题词】:试验条件;无损检验;超声检验;试验设备;声传输;特性
【英文主题词】:Characteristics;Non-destructivetesting;Soundtransmission;Testequipment;Testingconditions;Ultrasonictesting
【摘要】:ThisInternationalStandardestablishesproceduresforspecifyingcertainultrasonicsearchunitcharacteristicsandformeasuringtheassociatedsoundfield.Theaimistoestablishuniformityoftestingtechniques,toformabasisfortheinterpretationofresultsobtainedbydifferentlaboratoriesandatdifferenttimes.NotethatthisInternationalStandardestablishesnoacceptancecriteria;however,itdoesestablishthetechnicalbasisforcriteriathatmaybedefinedbyuserparties.ISO2400describesacalibrationblockusedinweldinspectionforcheckingtheperformanceoftheultrasonicinstrumentandsearchunit.Tofurtherenhancethegeneralultrasonicinspectioncapability,informationconcerningthesearchunit'stimedomainresponse,frequencyresponse(alsoreferredtoasfrequencyspectrum,frequencyanalysis,spectrumanalysisandsignatureanalysis)andsoundfieldmustbeknownbeforereliabledetectionandcharacterizationofflawscanbeachieved.Thesearchunitsdiscussedhereinarestraight-beamandangle-beamsearchunitswithanominalultrasonicfrequencyfrom0,5MHzto15MHz.Surfacewavesearchunitsarenotincludedinthisstandard.Thisstandardprovidesproceduresforspecifyingsoundfieldparametersaswellasmethodsofmeasurementinimmersiontests.Thisstandarddoesnotaddresssoundfieldmeasurementincontacttests.ThisInternationalStandarddescribesmeasurementproceduresforevaluatingcharacteristicsofultrasonicsearchunitsanddescribestechniquesusedforobtainingsoundfielddataproducedbyelectricallypulse-excitedsearchunitsusedinthefieldorinthelaboratory.Thecharacteristicparametersdiscussedinthisstandardaretheupper,lowerandcentrefrequencies,thewavelength,thebandwidth,thetimedomainandfrequencydomainresponses,thenear-fieldlength,thehalf-angleofbeamspreadforsearchunitsofdifferentshapesinfreefield,echosoundmeasurements,beamprofiles,theimpedanceandtherelativesensitivity.Formatsforspecifyingbothflat-faceandfocusedsearchunitsaregiven.Toprovidebaselineinformationandtocheckpossibleperformancedegradation,theelectricalpropertiesofthesearchunitaremeasuredindependentlyoftheultrasonicinstrument.Theelectricalimpedanceandsensitivityaremeasuredatspecificfrequenciesselectedforeachsearchunit.Theelectricalimpedancecorrespondstothecomplexinputimpedanceofthesearchunitandthesensitivityofthesearchunitisameasureoftheelectroacousticefficiencyoftheunit.Theseproceduresaredescribedin4.6and4.7,respectively.
【中国标准分类号】:H26
【国际标准分类号】:19_100
【页数】:17P;A4
【正文语种】:英语
【英文标准名称】:Tirevalvecorehousingandspudsforautomobiles
【原文标准名称】:汽车轮胎气门塞孔及销钉
【标准号】:JISD4213-1982
【标准状态】:作废
【国别】:日本
【发布日期】:1982-03-01
【实施或试行日期】:1982-03-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:AircraftsandAutomobiles
【标准类型】:()
【标准水平】:()
【中文主题词】:道路车辆;土方机械;农用设备;工业用货车;阀门部件
【英文主题词】:industrialtrucks;earth-movingequipment;agriculturalequipment;valvecomponents
【摘要】:
【中国标准分类号】:G41
【国际标准分类号】:
【页数】:3P;A4
【正文语种】:日语
