热释电人体红外线传感器的基本结构和原理毕业论文外文翻译.doc

热释电人体红外线传感器的基本结构和原理毕业论文外文翻译.doc:..(hereinafterreferredto:sensor)fromsensitiveunits,、SensitiveunitThedifferentsensors,;,eachoneofthetwosidesoftherelativelythinleadanelectrode,,thepolarizationoftheresult,,thusmakingitauniqueandanti-,asPl,P2haveitsownpolarization,thetwoendsofacapacitorintheoppositepolarity,istheequivalentofelectricity,negativecharge,whichthetwocapacitoristheoppositepolarityTheseries,therefore,positiveandnegativechargetooffseteachother,notintheloopcurrent,,exposuretothePl,P2ontheinfraredlightenergyequivalent,andachieveabalanced,polaropposite,,inthelightorthesun,becausethespeedofthesunmovingveryslowly,Pl,(〜10Hz),thatis,infraredsensorsonthewavelengthoflight-sensitiveaverynarrowrange(typically5〜15um),therefore,,duetoPl,P2dothesamesiliconchip,ithastheoppositepolarity,andtheenergyequivalentoflightinthestillcurrentintheloopoffseteachother,,anybodywillhaveaninfra-redfever,pyroelectricinfraredsensor