(新版)汽车专业英语课件：Automobile repair tools and equipment

Project2

Automobilerepairtoolsandequipment12Project2

Automobilerepairtoolsandequipment

掌握汽车的常用维修工具、仪器、设备及使用方法

掌握其常用术语知识目标能识别汽车常用维修工具的英文表达，并能熟记相关专业词汇能读懂汽车维修常见检测设备的英文使用说明，并按照说明进行正确操作和检测能力目标3Task1

Automobilerepairtools

1.Newwordsandexpressionsefficient[iˈfiʃənt]a.效率高的，有能力的prior[ˈpraiə]a.优先的，在前的maintenance[ˈmeintinəns]n.维修，保养essential[iˈsenʃəl]a.必不可少的；本质的，基本的technician[tekˈniʃən]n.技术员，技师wrench[rentʃ]n.扳手pliers[ˈplaiəz]n.钳子screwdriver[ˈskru:ˌdraivə]n.螺丝刀、起子property[ˈprɔpəti]n.财产；性质，性能caution[ˈkɔ:ʃən]n.谨慎；注意(事项)，警告file[fail]n.档案；文件夹；锉刀hammer[ˈhæmə]n.锤，榔头lift[lift]vt.提，举；vi.升起；消散n.电梯，举升机知识准备41.Newwordsandexpressionstorque

[tɔ:k]n.转矩，扭矩gauge

[geidʒ]n.测量仪表jack

[dʒæk]n.千斤顶piston

[ˈpistən]n.活塞valve

[vælv]n.阀，活门spring

[spriŋ]n.春(天)；泉；弹簧，发条tongs

[tɔŋz]n.夹子，钳子universal

[ˌju:niˈvə:səl]a.普遍的；万能的socket

[ˈsɔkit]n.插座，套筒priorto先于，优于avarietyof各种各样的carryout执行，实行apartfrom

除…之外知识准备5知识目hexkeys内六角扳手slipjointpliers鲤鱼钳Pairofpliers钢丝钳longnosepliers尖嘴钳pipewrench管子钳steelwirebrush钢丝刷feelergauge塞尺/厚度规verniercaliper游标卡尺micrometer外径千分尺dialindicator百分表aircompressor空气压缩机adjustablewrench活动扳手universalpuller通用拉拨器digitalmultimeter数字万用表hydraulicjack油压千斤顶知识准备6Automobilerepairtools任务实施7Automobilerepairtools任务实施ThereisanoldChinesesaying,“Efficienttoolsarepriortogoodharvests.”Itisthesameinthefieldofautomobilemaintenance.Itisessentialandhelpfulforatechniciantogetsomeefficientrepairtools.Thereareawidevarietyofrepairtoolsinanauto.4Sshop.Whenwetalkaboutthem,weshouldnotbestrangeforsuchtoolsaswrenches,pliersandscrewdriversandsoon.Ofcourse,thesearethemostcommontools.Theyarenotenoughtofinishtherepairwork.Apartfromsomecommontools,therearealotofspecialtoolsthatareusedtocarryoutsomespecialtask.Thefigure2.1.1convergessomeofrepairtools. Beforeusingthesetools,wemustlearnmoreabouttheirstructuralpropertiesandcautions.8Task2Automobiletestingequipment1.Newwordsandexpressionsfacility

[fəˈsiliti]n.［pl.]设备，设施；technician

[tekˈniʃən]n.技术员，技师oscilloscope[əˈsɪlə,skop]n.示波器current

[ˈkʌrənt]a.当前的；流行的n.流；电流voltage

[ˈvəultidʒ]n.电压resistance

[riˈzistəns]n.反抗，抵制；抵抗力(性)；阻力，电阻frequency

[ˈfri:kwənsi]n.次数，频率decode

[ˌdi:ˈkəud]vt.译(码)，解(码)performance

[pəˈfɔ:məns]n.表现，工作性能analyze

[ˈænəlaiz]vt.分析，细察exhaust

[igˈzɔ:st]vt.使精疲力尽；耗尽n.排气装置；废气(液)align

[əˈlain]vt.&vi.排行diagnosis

[ˌdaiəgˈnəusis]n.诊断知识准备9Task2Automobiletestingequipmentmechanical

[miˈkænikəl]a.机械(制造)的；力学的；呆板的integrate

[ˈintigreit]v.(into，with)(使)成为一体，(使)合并digital

[ˈdidʒitl]a.数字的，数字显示的analog

[ˈænəlɔg]n.类似物;模拟indispensable

[ˌindiˈspensəbəl]a.(to，for)必不可少的，必需的accurate

[ˈækjurət]a.正确无误的；准确的，精确的reading

[ˈri:diŋ]n.读物；读数function

[ˈfʌŋkʃən]n.功能；重大聚会；函数impedance[ɪmˈpidns]n.[电]阻抗,全电阻parameter

[pəˈræmitə]n.[常pl.]界限，范围；参数capacitance[kəˈpæsɪtəns]n.容量,电容waveform['weɪvfɔ:rm]n.波形amplitude[ˈæmplɪˌtud,-ˌtjud]n.振幅intensity

[inˈtensiti]n.强烈，剧烈；强度graphic

[ˈgræfik]a.生动的，形象的；图表的interface

[ˈintə(:)feis]n.接口；界面，交接处accessory

[əkˈsesəri]n.附(零,配)件maintenance

[ˈmeintinəns]n.维修，保养；扶养费；维持，保持知识准备10Task2Automobiletestingequipmentdynamic

[daiˈnæmik]a.有活力的；动力的detect

[diˈtekt]vt.察觉，发现；查明,检测ignition

[igˈniʃən]n.点火lubricate

[ˈlu:brikeit]vt.使润滑emission

[iˈmiʃən]n.排放，辐射；排放物extract

[ikˈstrækt,ˈekstrækt]vt.取出；提取；获得；摘录n.摘录；提出物cabinet

[ˈkæbinit]n.内阁；贮藏橱，陈列柜compliance

[kəmˈplaiəns]n.排放达标（率）；服从，听从density

[ˈdensiti]n.密集，稠密；密度coefficient[ˌkoəˈfɪʃənt]n.[数]系数versatile

[ˈvə:sətail]a.多才多艺的；多功能的，万用的ingredient

[inˈgri:diənt]n.组成部分，成分，原料contrast

[ˈkɔntrɑ:st]n.对比；反差vt.对比vi.(with)形成对比camber['kæmbə]n.拱形,外倾caster['kɑ:stə]n.投手、(家具的)轮脚,后倾知识准备11Task2Automobiletestingequipmentautomultimeter汽车万用表autooscilloscope汽车示波器engineperformancesanalyzer发动机性能分析仪autodecoder汽车解码器autoexhaustgasanalyzer汽车尾气分析仪fourwheelaligner四轮定位仪faultdiagnosis故障诊断liquidcrystaldisplay(LCD)液晶显示器self-diagnosisfunction自诊断功能electroniccontrolunit(ECU)电控单元dataacquisition数据采集signalextractiondevice信号提取装置carbondioxide(CO2)二氧化碳carbonmonoxide(CO)一氧化碳oxygen(O2)氧气hydrocarbon(HC)碳氢化合物nitrogenoxide(NOx)氮氧化物excessaircoefficient过量空气系数知识准备12Automobiletestingequipment任务实施Amoderncarisahi-techproduct.Therepairworkisfarbeyondthecapabilityoftechnician’shandsandeyes.Asatechnician,youwillhavetousesomespecialfacilitiestofindoutthefaultcauseandsolveproblems.Thesetestingequipmentsthatarecommonlyusedintheautorepairworkincludeautomultimeter,autooscilloscope,faultdecoder，engineperformancesanalyzer,autoexhaustgasanalyzerandfour-wheelalignmentinstrument,etc.(shownasthefigure2.2.1).Theyareallthemechanical-electricalintegratedexaminingfacilitiesspeciallydesignedforautomotivetroublediagnosis,testandanalysis.Thebriefintroduceisasbelow.13Automobiletestingequipment任务实施Thedigitalautomultimeter.Multimetersaredividedintotwotypes：digitalandanalog.Itisanindispensabletestinginstrumentintherepairprocess.Comparedwithananalogmultimeter,adigitalmultimeter(DMM)hasmoreadvantages,likeaccuratereadings,morefunctionsandhigherimpedance.Thereforemostelectricianswouldliketousedigitalmultimeterstotestsuchparametersascurrent,voltageandresistance.Besides,amoreadvancedfunctionlikefrequencyorcapacitancecanbeselectedtomeasure.Autooscilloscope.Theoscilloscopeisapowerfultoolbywhichautomobilemechanicscanmakearapidfaultdiagnosisoftheautomotiveelectronicequipment.Itisadevicethatmeasuresvoltages.Whentested,theoscilloscopeshowsawaveformdiagramwhichthevoltagechangeswiththetimetorespondtoanelectronicsignal.Normally,itdisplaysthevoltageasafunctionoftime.Especially,theoscilloscopeisappliedtoobserveandmeasurethefrequency,amplitudeandwaveformofvarioussignals.14Automobiletestingequipment任务实施15Automobiletestingequipment任务实施Inthegraph,theverticalaxis(Y)representsforvoltageandthehorizontalaxis(X)showstime.TheintensityorbrightnessofthedisplayissometimescalledtheZaxis.Theoscilloscopeismoreaccurateandmoregraphicthanthemultimetertomeasureanelectronicsignal.Itmainlyconsistsoftheliquidcrystaldisplay(LCD),functionkeys,ahostinterfaceandaccessories.Autodecoder.Whenacarisrunning,oncetheelectricalcontrolsystemfails,theelectroniccontrolunit(ECU)willuseitsself-diagnosisfunctiontodetectthefault.Thefaultwillbestoredinthememoryoftheelectroniccontrolunitintheformofthecode.Theroleofthedecoderistoreadthefaultcodefromtheelectroniccontrolunitandprovidereferenceforthemaintenancepersonnel.Anautodecoderisdividedintogeneralandspecialtype.Nomatterwhichitis，itsstructureisbasicallythesame,mainlyincludingthehost,powersupply,testconnectorsandtestline.16Automobiletestingequipment任务实施Engineperformanceanalyzer.Anengineperformanceanalyzerisasetofinstrumentthatintegratessensortechnology,dynamicdataacquisitionandsignalprocessingtechnology.Itcannotonlyaccuratelyacquirevariousoperationparametersoftheenginebydynamicallydetectingthesystemoftheengine’signition,thefuelsupply,cooling,lubrication,intakeandexhaust,electroniccontrol,sensor,emission,etc.butalsoanalyzethefaultroot.Theengineperformanceanalyzerisgenerallycomposedoffiveparts:signalextractiondevice,signalprocessingsystem,personalcomputer(PC)installedthesoftwareandaccessories,optionalequipmentandcabinet.17Automobiletestingequipment任务实施18Automobiletestingequipment任务实施Automobileexhaustanalyzer.Anexhaustgasanalyzerisoneofimportanttestinginstruments.A5-gasanalyzermeasurescarbon