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【英文标准名称】:StandardPracticeforVerifyingtheConsistencyofAE-SensorResponseUsinganAcrylicRod
【原文标准名称】:丙烯酸棒测定声发射传感器响应一致性的标准实施规程
【标准号】:ASTME2075/E2075M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:声发射传感器;传感器检查;传感器一致性检查;传感器响应;传感器试验;传感器校准;声发射测试;丙烯酸传感器棒;一致性;
【英文主题词】:acousticemissionsensors;AE;sensorcheck;sensorconsistencycheck;sensorresponse;sensortest;sensorverification;Acousticemission(AE)testing;Acrylicsensorrod;Consistency
【摘要】:Degradationinsensorperformancecanoccurduetodropping,mechanicalshockwhilemountedontheteststructure,temperaturecycles,andsoforth.Itisnecessaryanddesirabletohaveasimplemeasurementprocedurethatwillchecktheconsistencyofsensorresponse,whileholdingallothervariablesconstant.Whiletestblocksofmanydifferentkindshavebeenusedforthispurposeformanyyears,anacrylicpolymerrodoffersthebestall-aroundcombinationofsuitableacousticproperties,practicalconvenience,easeofprocurementandlowcost.Becausetheacousticpropertiesoftheacrylicrodareknowntodependontemperature,thispracticerequiresthattherod,sensors,andcouplantbestabilizedatthesameworkingtemperature,priortoverifyingthesensors.Attentionshouldbepaidtostorageconditionsfortheacrylicpolymerrod.Forexample,itshouldnotbeleftinafreezingorhotenvironmentovernight,unlessitisgiventimefortemperaturestabilizationbeforeuse.Properlyappliedandwithproperrecordkeeping,thispracticecanbeusedinmanyways.Theuserorganizationmustdeterminethecontextforitsuse,theacceptancestandardsandtheactionstobetakenbasedontheleadbreakresults.Thefollowingusesaresuggested:Todeterminewhenasensorisnolongersuitableforuse.Tochecksensorsthathavebeenexposedtohigh-riskconditions,suchasdropping,overheating,andsoforth.Togetanearlywarningofsensordegradationovertime.Thiscanleadtoidentifyingconditionsofuse,whicharedamagingsensors,andthus,tobetterequipmentcareandlowerreplacementcosts.Toobtainmatchedsetsofsensors,preamplifiers,instrumentationchannels,oracombinationthereof,formoreuniformperformanceofthetotalsystem.Tosavetimeandmoney,byeliminatingtheinstallationofbadsensors.Toverifysensorsquicklybutconsistentlyinthefieldandtoassisttrouble-shootingwhenachanneldoesnotpassaperformancecheck.Alltheaboveusesarerecommendedforconsideration.Thepurposeofthispracticeisnottocallouthowtheseusesaretobeimplemented,butonlytostatehowthetestitselfistobeperformedsothattheresultsobtainedwillbeaccurateandreliable.1.1Thispracticeisusedforroutinelycheckingthesensitivityofacousticemission(AE)sensors.Itisintendedtoprovideareliable,preciselyspecifiedwayofcomparingasetofsensors,ortellingwhetheranindividualsensor''ssensitivityhasdegradedduringitsservicelife,orboth.1.2Thispracticeisnotax201C;calibrationx201D;nordoesitgivefrequencyresponseinformation.1.3Units8212;ThevaluesstatedinSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:L31
【国际标准分类号】:19_100
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Specificationfordedicatedliquefiedpetroleumgasappliances-Domesticfluelessspaceheaters(includingdiffusivecatalyticcombustionheaters)
【原文标准名称】:专用液化石油气设施的规范.家用无烟道空间加热器(包括扩散式催化燃烧加热器)
【标准号】:BSEN449+A1-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-12-04
【实施或试行日期】:2002-12-04
【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】:催化剂;分类系统;燃烧;结构要求;定义;设备安全;燃气技术;燃气动力装置;加热器;家用设备;使用说明书;液化石油气;液化石油气装置;作标记;材料;操作说明书;包装件;房间加热器;安全;安全工程;安全要求;规范(验收);材料强度;测试;密封性
【英文主题词】:Catalytic;Classificationsystems;Combustion;Constructionrequirements;Definition;Definitions;Equipmentsafety;Gastechnology;Gas-powereddevices;Heaters;Householdequipment;Instructionsforuse;Liquefiedpetroleumgas;Liquefiedpetroleumgasinstallations;Marking;Materials;Operationalinstructions;Packages;Roomheaters;Safety;Safetyengineering;Safetyrequirements;Specification(approval);Strengthofmaterials;Testing;Tightness
【摘要】:
【中国标准分类号】:
【国际标准分类号】:97_100_20
【页数】:56P.;A4
【正文语种】:英语