大距離系靈敏紅外測溫理論及應(yīng)用研究.pdf

1、浙江大學(xué)碩士學(xué)位論文大距離系數(shù)紅外測溫理論及應(yīng)用研究姓名：聶紹龍申請學(xué)位級別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：王宣銀20030101AbstractIRthermometerbeenwidelyusedinindustrynationaldefensebecauseitsmanymeritsWitlthedevelopmentofscienceandtechnologymanyprojectsneedmeasurementtempera

2、tureofdistantandsmallobjectandlargedistanceCOe伍cientIRthermometerbeenused。WiththesuppogofNanwangMultimediaCoLtd，thewritertriumphantlyinvestigatedit，andresearchedthekeytechnologiesTheresearchesareessentiaIeitherintheoryor

3、engineering，Inchapterone，thegeneralsituationofIRthermometerisdiscussedandtheirperformanceindexiSanalyzedThedifiersoflargedistancetoefficientIRfllermometerandthatofothersiSpointedoutInchaptertwotheprincipleofIRthermometer

4、andlargedistancecoefficientIRthermometerisintroducedInchapterthreethelownoisepre—amplifieriSdesignedwhichmatchedwiththedetector：Basedontheweaksignaldetectiontheory，thesignaldetecting、amplifyingandprocessingcircuitisdesig

5、ned；inthischapteranewdigitalphasesensitivedetectors(DPSD)methodusinginphasesamplingsummationisputforwardandthealgorithmjSsimulatedbasedonthemeritsofsomecommonDPSD。Inchapterfoursomefactorsthata能cttheprecisionofthetemperat

6、uremeasurementarecompletelyanalyzed，therelationformulasofthatobjectemissivityambienttemperatureandobjectsystemdistanceaffecttheprecisionofthetemperaturemeasurementarededucedaccordingtothedifierencesbetweencalibrationandr

7、ealWOrkconditionthisOfrerthe廿1eoryfordesignandcatibrationoflargeDistancecoe蛾cientRthertTlometerInchapterfivet11ecatibrationandexperimentalresearchofIRthermometerbasedonLSMpolynomialfittingisputforward，neuralnetworkbeenap

8、pliedtosolvethenon1inearbetweenobjecttemperatureandsignalInchaptersixthetotalarticleissummarizedandsometheoriest11atneedmoreimprovingiSintroducedandthetrendsofIRthermometerisforecasted【keywordslIRthermometer、Distancecoef