外文翻译及文献综述规范与要求.doc

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1、毕业设计（论文）——外文翻译（原文）ElectrodelayoutofZnOpyroelectricsensorsAbstractTnthepresentstudy,anelectrodelayoutofpyroelectriesensorsisdevelopedtoimproveelectricsignals.Voltageresponsivityisamaintargettoenhaneetheperformaneeofpyroelectricsensors・Apartiallycovered,topelectrodehasb

2、eenproventoeffectivelyincreasethevoltageresponsivityofpyroelectricsensors.IntheexperimcntalresuIts,theproposedelectrodelayoutwithanarraytypeinZnOpyroelectricsensorspossessedhighervoltagesignals,about3.6timesthatofafullycoveredtype,andabout2timesthatofapartiallycovered

3、type.Moreover,afiniteelernentmodelisusedtoexplorethetemperaturevariationrateinZnOpyroelectricsensorsforboththefullycoveredandthepartiallycoveredelectrodes.Inthesimulationresults,thepartiallycoveredelectrodecanindeedimprovethetemperaturevariationrateintheZnOlayer.Keywo

4、rds:MEMS;Pyroelectric;Sensor;ZnO1.IntroductionMultilayerpyroelectricsensorshavebeensuccessfullyusedinmanyapplications,suchaspollutionmonitoring,hotimagedetectors,intruderalarms,andgasanalysis.Theypossessmanyadvantagesincludingnon-cooleddetection,room-temperatureoperat

5、ion,lowersystemcosts,fastspeeds,port-ability,havingawidespectralresponsewithhighsensitivityandbeingintegrablewithon-chipcircuitry[1-3].Theconventionalpyroelectricsensorsarecomprisedofapyroelectriclayersandwichedbetweentopandbottomelectrodes・Thetopsideisexposedtoaheats

6、ource.Thedynamicresponsecurrentofpyroelectricsensorsisproportionaltothetemperaturevariationrateofpyroelectrielayers[1].Ahighertemperaturevariationrateinthepyroelectrielayerleadstoahigherresponsecurrentforthepyroelectricsensors.Apartiallycovered,topelectrodehasbeenprov

7、entoresultinahigherresponsivitythanthatofafullycoveredelectrodebecauseitopenswindowsfortheZnOlayertoclirectlycomeintocontactwiththeheatsource[4].Therefore,theelectrodelayoutplaysonii叩ortemtroleinpyroelectricsensors.Thisconcepthasbeenexpandedtoetchathree-dimensionalpat

8、ternontheresponsiveelementofLiTaO3;lateraltemperaturegradientswillbeinducedonthesidewallofresponsiveelementsunderhomogenous