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ASTM E1237-1993(2003) 安装耦合电阻应变仪

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【英文标准名称】:StandardGuideforInstallingBondedResistanceStrainGages
【原文标准名称】:安装耦合电阻应变仪
【标准号】:ASTME1237-1993(2003)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:E28.01
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:机械试验;装置;应变仪;金属;延伸;测量仪器
【英文主题词】:Adhesion;Adhesivebonding;Base-metalsubstrates;Bondedresistancestraingages;Bonding;Bondstrength;Electricalmeasurements;Environmentalcontrol/fate;Etchedfoilresistancestraingages;Expansion;Heatingtests-metals;Installation;Resistance;Resistancegages;Solder/solderingapplications;Straingages;Straintesting-metallicmaterials;Stress-metallicmaterials;Thermalcoefficientofexpansion;Verification;installingbondedresistancestraingages,guide
【摘要】:Methodsandproceduresusedininstallingbondedresistancestraingagescanhavesignificanteffectsupontheperformanceofthosesensors.Optimumandreproducibledetectionofsurfacedeformationrequiresappropriateandconsistentsurfacepreparation,mountingprocedures,andverificationtechniques.1.1Thisdocumentprovidesguidelinesforinstallingbondedresistancestraingages.Itisnotintendedtobeusedforbulkordiffusedsemiconductorgages.Thisdocumentpertainsonlytoadhesivelybondedstraingages.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N62
【国际标准分类号】:19_060
【页数】:4P.;A4
【正文语种】:


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【英文标准名称】:Wetgasflowmeteringguideline
【原文标准名称】:湿气流量计指南
【标准号】:ASMEMFC-19G-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008-07-11
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisTechnicalReportdiscussestheexistingdefinitionsof“wetgasflow”andprovidessuggesteddefinitionsforuse.Commonwetgasflowmeteringterminologies,principles,andlimitationsoftheavailablewetgasmetertechnologiesarealsodiscussed.Wetgasflowmeteringisanimportantflowmeasurandinmanyindustries.Ifarelativelysmallvolumeofliquidispresentinagasitisgenerallysaidtobe“wet.”Wetgasflowsarenotnewoccurrencesinindustry(e.g.,wetsaturatedsteamflowshavebeenproducedsincetheindustrialrevolution)butitisonlyrecentlythatattemptstometerwetgasflows(e.g.,bytheoilandgasindustry)withimprovedandaperhapsbetterunderstooduncertaintieshavebeenmade.Measurementtechniquesarebeingcontinuouslydevelopedbutacceptedsingle-phase(dry)gasmeteruncertaintyisasyetnotattainablewhenawetgasflowispresent.Duetothedifficultiesinvolvedinwetgasmeteringitisunlikelythatthesamelevelofuncertaintyseenwithsingle-phasegasmeteringwillbeachievedintheforeseeablefuture.Therearetwodistinctwetgas-meteringsituations:(a)Wheresomeflowrateknowledgeisinitiallyknown,forexample,(1)thetotalmassflowrateisknown(suchasinaclosedcyclesystem,e.g.,asteampowercycle)andeithertheratioofliquid-to-gasflowratesoroneofthephaseflowratesisrequiredtobemetered.(2)onephaseflowrateisknown(fromsomeothermeans)andtheotherphaseflowrateistobemetered.(b)Noflowrateinformationisknown(e.g.,unprocessedwetnaturalgasflows)andeitherorboththeliquidandgasphaseflowratesarerequiredtobemetered.Thisisaconsiderablymoredifficultmeteringsituationasextrainformationisrequiredandmetersbeingdevelopedforthissituationareconsideredtobeatthecuttingedgeoffluidflowmeteringtechnology.NOTE:Mostofthecurrenttechnologiesignoretheeffectsofmulti-componentliquidspresentinwetgasflows.However,somemeteringsystemsaredesignedtoestimatethedifferentquantitiesofliquidcomponentsinawetgasflow.
【中国标准分类号】:N12
【国际标准分类号】:
【页数】:272P;A4
【正文语种】:英语


基本信息
标准名称:植物幼根横切技术条件(试行)
中标分类: 轻工、文化与生活用品 >> 文教、体育、娱乐用品 >> 其他教具
发布日期:
实施日期:2004-07-15
首发日期:
作废日期:
出版日期:
页数:1页
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所属分类: 轻工 文化与生活用品 文教 体育 娱乐用品 其他教具