资源描述：
《基于单片机的电子换号牌的设计毕业论文》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、毕业设计（论文）报告题目基于单片机的电子换号牌的设计系别专业班级学生姓名学号指导教师2013年4月26TheapplicationofelectronicnoseAbstract:positivehumanolfactoryorganisacomplexphysiologicalreaction.Naturekindofodortensofthousands,evenprofessionalsspecializinginodoridentificationworkisoftenrecognitionerrors.Keywords:electronicnosecomputertec
2、hnologydevelopedolfactoryorgansphysiologicalreaction"Customs"securitymonitoringneuralnetworksodorsensoridentificationinfraredsensorIntroduction:Theelectronicnosedevelopedahigh-techproductsissimulatedanimalolfactoryorgan,scientistsarestillnotallclearprincipleoftheanimal'ssenseofsmell.However,w
3、iththedevelopmentofscienceandtechnology,moreauthoritativesomeuniversitiesintheworldhavedevelopedelectronicnosehasawiderangeofapplications,mostnotablytothenumberoftheUniversityofHamburg,Germany,hasabsoluteauthorityinthesensorfieldintheworldtoday.Electronicnoseistheresponsepatterntoidentifytheo
4、dorofthegassensorarrayelectronicsystems,itcanbeinafewhours,daysorevenafewmonthstimewithinacontinuous,real-timemonitoringofthespecificlocationoftheodorcondition.Identifyingodormainmechanismoftheelectronicnoseisthateachsensorinthearrayhasadifferentsensitivityofthemeasuredgas.Thecoreofthedeviceo
5、ftheelectronicnosegassensor.Gassensorsbasedontheprincipleofdifferenttypeofmetaloxide,electrochemical,andconductivepolymertype,quality,photo-ionizationtypecanbedividedintomanytypes.Currentlythemostwidelyusedisametaloxide.Howitworks:Electronicnoseismainlycomposedofthreepartsofagassensorarray,si
6、gnalpre-processingandpatternrecognition.Presentedinfrontofanactivematerialofthesensor,anodorsensorchemicalinputisconvertedintoanelectricalsignalbyapluralityofsensorresponsetoanodortheyconstitutethesensorarraytotheodoroftheresponsespectrum.Obviously,thevariouschemicalcomponentsintheodorsensiti
7、vematerialsplayaroleinthisresponsespectrumforabroadspectrumofodorresponsespectrum.Toachievetheodorqualitativeorquantitativeanalysis,thesensor26signalmustbeappropriatepretreatment(toeliminatenoise,featureextraction,signalamplification,etc.),us
