SAE AMS2675 Brazing, Nickel Alloy Filler Metal
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来源:标准资料网
Product Code:SAE AMS2675
Title:Brazing, Nickel Alloy Filler Metal
Issuing Committee:Ams B Finishes Processes And Fluids Committee
Scope:This specification covers the engineering requirements for producing brazed joints in parts made ofsteels, iron alloys, nickel alloys, and cobalt alloys by use of nickel alloy filler metal.
【英文标准名称】:StandardTestMethodforMeasuringBinocularDisparityinTransparentParts
【原文标准名称】:测量透明部件中双筒镜差异的标准试验方法
【标准号】:ASTMF1181-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:F07.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:angulardeviation;binoculardisparity;binocularvision;diplopia;doublevision;Aerospacetransparentenclosures;Binoculardisparity;Canopies(aerospaceapplications);Diplopia;Disparity;Goggles;Imageanalysis--aerospacematerials;Opticalmate
【摘要】:DiplopiaordoublingofvisionoccurswhenthereissufficientbinoculardisparitypresentsothattheboundsofPanum''sarea(theareaofsinglevision)isexceeded.Thisconditionariseswheneveroneobjectissignificantlycloser(orfarther)thananothersothatlookingatonewillcausetheimageoftheothertoappeardouble.Thiscanbeeasilydemonstrated:Closeoneeyeandlookataclock(orotherobject)onadistantwall.Nowplaceyourthumbtoonesideoftheimageoftheclock.Nowopenbotheyes.Ifyoulookattheclock,youshouldseetwothumbs.Ifyoulookatyourthumb,youshouldseetwoclocks.Complaintsfrompilotsflyingaircraftequippedwithwidefieldofviewheadupdisplays(HUDs)suchastheLANTIRNHUDindicatedthattheywereexperiencingdiscomfort(eyefatigue,headaches,andsoforth.)orseeingeithertwotargetsortwopippers(aimingsymbolsontheHUD)whenusingtheHUD.SubsequentinvestigationsrevealedthattheproblemarosefromthefactthattheaircrafttransparencyandtheHUDsignificantlychangedtheopticaldistancesofthetargetandtheHUDimagerysothatbinoculardisparity,whichexceededPanum''sareawasinduced.Useofthistestmethodprovidesaprocedurebywhichtheamountofbinoculardisparitybeingexperiencedbyahumanoperatorduetothepresenceofatransparentpartinhisfieldofviewmaybeeasilyandpreciselymeasured.1.1Thistestmethodcoverstheamountofbinoculardisparitythatisinducedbytransparentpartssuchasaircraftwindscreens,canopies,HUDcombiningglasses,visors,orgoggles.Thistestmethodmaybeappliedtopartsofanysize,shape,orthickness,individuallyorincombination,soastodeterminethecontributionofeachtransparentparttotheoverallbinoculardisparitypresentinthetotalx201C;viewingsystemx201D;beingusedbyahumanoperator.1.2Thistestmethodrepresentsoneofseveraltechniquesthatareavailableformeasuringbinoculardisparity,butistheonlytechniquethatyieldsaquantitativefigureofmeritthatcanberelatedtooperatorvisualperformance.1.3ThistestmethodemploysapparatuscurrentlybeingusedinthemeasurementofopticalangulardeviationunderMethodF801.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A42
【国际标准分类号】:
【页数】:3P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 工业氢氟酸 六氟硅酸含量测定 分光光度法 |
| 英文名称： | Hydrofluoric acid for industrial use--Determination of hexafluorosilicic acid content--Spectrophotometric method |
| 中标分类： |
化工 >>
无机化工原料 >>
无机酸、碱 |
| 替代情况： | 被GB 7744-1998代替 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1987-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1999-04-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 3页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 化工 无机化工原料 无机酸 碱
