NF X20-300-1994 大气质量.试验台上的气体分析器的特性评价
时间:2024-05-22 06:47:02 来源: 标准资料网 作者：标准资料网 阅读：8834
【英文标准名称】:Airquality.Evaluationofthecharacteristicsofgasanalysersontestbench.
【原文标准名称】:大气质量.试验台上的气体分析器的特性评价
【标准号】:NFX20-300-1994
【标准状态】:作废
【国别】:法国
【发布日期】:1994-05-01
【实施或试行日期】:1994-05-05
【发布单位】:法国标准化协会(FR-AFNOR)
【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】:N56
【国际标准分类号】:71_040_40
【页数】:21P;A4
【正文语种】:其他
【英文标准名称】:StandardPracticeforCharacterizingAcousticEmissionInstrumentation
【原文标准名称】:声辐射测量仪表表征的标准规程
【标准号】:ASTME750-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:声音传播;试验;无损检验;测量;仪器装置;声学;发射;噪声辐射
【英文主题词】:acousticemission;AE;dead-time;gain;preamplifier;sensitivity;sensor;signalprocessor;threshold
【摘要】:1.1Thispracticeisrecommendedforuseintestingandmeasuringoperatingcharacteristicsofacousticemissionelectroniccomponentsorunits.(SeeAppendixX1foradescriptionofcomponentsandunits.)Itisnotintendedthatthispracticebeusedforroutinechecksofacousticemissioninstrumentation,butratherforperiodicevaluationorintheeventofamalfunction.Thesensorisnotaddressedinthisdocumentotherthansuggestingmethodsforstandardizingsystemgains(equalizingthemchanneltochannel)whensensorsarepresent.1.2Wherethemanufacturerprovidestestingandmeasuringdetailsinanoperatingandmaintenancemanual,themanufacturer'smethodsshouldbeusedinconjunctionwiththemethodsdescribedinthispractice.1.3Difficultorquestionableinstrumentationmeasurementsshouldbereferredtoelectronicsengineeringpersonnel.1.4Themethodssetforthinthispracticearenotintendedtobeeitherexclusiveorexhaustive.1.5Themethods(techniques)usedfortestingandmeasuringthecomponentsorunitsofacousticemissioninstrumentation,andtheresultsofsuchtestingandmeasuringshouldbedocumented.Documentationshouldconsistofphotographs,chartsorgraphs,calculations,andtabulationswhereapplicable.1.6AEsystemsthatusecomputerstocontrolthecollection,storage,display,anddataanalysisareincommonuse.Featuresofthecomputer-basedsystemsmightincludewaveformcollectionaswellasawideselectionofmeasurementparametersrelatingtotheAEsignal.Themanufacturerprovidesaspecificationforeachsystemthatspecifiestheoperatingrangeandconditionsforthesystem.Allcalibrationandacceptancetestingofcomputer-basedAEsystemsmustusethemanufacturer'sspecificationasaguide.Thispracticedoesnotcovertestingofthecomputerorcomputerperipherals.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N65
【国际标准分类号】:17_140_20
【页数】:10P.;A4
【正文语种】:
【英文标准名称】:Glossaryofaeronauticalandastronauticalterms-Astronautics
【原文标准名称】:航空和航天术语词汇.第18节:航天学
【标准号】:BS185-18-1970
【标准状态】:现行
【国别】:英国
【发布日期】:1970-07-21
【实施或试行日期】:1970-07-21
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;词汇;航天器部件;运动学;航天飞行器;弹道学;航天器;航天技术;轨道(射体);飞行操作;航天运输
【英文主题词】:spacetechnology;flightoperations;aerospacetransport;spacetransport;vocabulary;trajectories;ballistics;spacetechnologycomponents;kinematics;spacevehicles;spacecraft
【摘要】:Vehicles,components,launching,re-entryandorbits.
【中国标准分类号】:V04
【国际标准分类号】:01_040_49;49_140
【页数】:6P;A4
【正文语种】:英语