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12电气于守洋李阳华齐建明Livinginarapidlydevelopingsociety[sə'saɪətɪ]，wehavethechancetoenjoymanythingspeoplewhohasdiedcannot.生活在一个快速发展的社会,我们有机会享受很多事情已经死亡的人不能。Someonemaylikesmartcars有些人可能喜欢智能汽车Someonemaybepure[pjʊə(r)]Militaryenthusiasts[ɪn'θju:zɪæsts]有人可能是纯军事爱好者Buteverymachinecannotworkwithoutmanyspecialdevicesinit.Thesespecialdevicesarecalled“transducer”[trænz'dju:sə(r)]or“sensor”,whicharewidelyusedineverywhere.Sensorstomachineiswhatsenseorganstoapeople.Lotssensorsmakeupthenervoussystemofthemachine,thenthemachinecanbecontrolledbypeopletodowhattheywant.但每台机器没有很多特别的设备不能工作。这些特殊设备被称为“传感器”或“传感器”,广泛用于无处不在。传感器的机器是人的感觉器官。很多传感器组成机器的神经系统,那么这台机器就可以由人们去做他们想要的东西。Now,let’shavearealizationonthedifferentsensesofmachine.现在,让我们有一个感官的不同机器上实现。Photosensitivesensor光敏传感器Acousticsensors声学传感器Gassensor气体传感器chemicalsensor化学传感器Pressure,temperature,fluidsensor压力、温度、流体传感器Photosensitivesensor(光敏传感器)Photosensitivesensorisoneofthemostcommonsensor,itssortisvarious,mainlyinclude:photocell(光电管),photomultipliertubes（光电倍增管）,photosensitiveresistance（光敏电阻）,lightactivatedtriode（光敏三极管）,solarcells（太阳能电池）andinfraredsensors（红外线传感器）,ultraviolet[ʌltrə‘vaɪələt]sensors（紫外线传感器）,optical[’ɒptɪk(ə)l]fibertypephotoelectricsensor（光纤式光电传感器）,colorsensor,CCDandCMOSimagesensor,etc.•Lightsensoristhemostcurrentproduction,oneofthemostwidelyusedsensors,itplaysanimportantroleinautomaticcontrol(自动控制)andnon-electricitymeasurement[‘meʒəm(ə)nt]technology（非电量电测技术）.Thesimplestphotosensitivesensorisphotosensitiveresistance(光敏电阻),itwillcreateelectriccurrentwhenphotons（光子）hitjoint（结合处）.Workingprinciple•Lightsensorscanconvertslightsignalsintoelectricalsignalswithphotosensitiveelementsensor,itssensitivewavelengthsisclosetothevisiblelightwavelength,includinginfrared[ɪnfrə'red]wavelength（红外线波长）andultraviolet[ʌltrə'vaɪələt]wavelengths（紫外线波长）.Lightsensorisnotlimitedtolightdetection,italsocanbeusedasadetectiondeviceofothersensorstotestmanynon-electrical,aslongasthenon-electriccanbeconvertedintoopticalsignalchanges（光信号变化）.Application•Photosensitivesensorismainlyusedinsolarenergylawnlamp(太阳能草坪灯),smallopticalnightlights（光学小夜灯）,camera,monitors[‘mɑnətɚ],electrictoys,electricswitches,anti-theftwallet,electricmusicbox,musicbirthdaycandle,musiccup,thebodyinduction（感应）switch,andotherlightautomaticcontrolfield.backChemicalsensor化学传感器Aplicationofchemicalsensor•Chemicalsensorsisusedforchemicalmeasurements.Itisoftenusedintheproductionprocessanalysisandenvironmentalpollutionmonitoring.Chemicalsensorhasbeenwidelyusedinmineralresourcesexploration（矿产资源探索）,weatherobservation(气象观测)andremotesensing（遥测）,industrialautomation（工业自动化）,medicaldiagnosis[,daɪəg'nəʊsɪs]（医疗诊断）andreal-timeremotemonitoring（实时监测）,agriculturefreshpreservationandfishdetection,security,securityalarm,andenergysavingandsoon.backPressuresensitive,temperature,fluidsensor,senseoftouch•Pressuresensoristhemostcommonsensorinindustrialpractice,itiswidelyusedinvariousindustrialcontrolenvironment(工业自控环境),involvingwaterconservancyandhydropower['haɪdrə(ʊ)paʊə]（水利水电）,railwaytransportation,intelligentbuildings,productioncontrol（生产自控）,aerospace,military['mɪlɪt(ə)rɪ]industry（军工）,petrochemical（石化）,oil,electricpower,ships,machinetools（机床）,pipe,andmanyotherindustries.Thanks!