Xov Xwm - Txoj Cai Ua Haujlwm ntawm Thermopile Infrared Sensor

Txoj Cai Ua Haujlwm ntawm Thermopile Infrared Sensor - Thermoelectric Effect

Thermoelectric Effect (Seebeck Effect)

Yog tias ob qho khoom sib txawv lossis cov khoom A thiab B uas muaj cov khoom siv tib yam thaum muaj kev ua haujlwm sib txawv, thaum txuas rau ntawm qhov kub kawg (Hot Junction Area), qhib rau ntawm qhov kawg txias (Cold Junction Area), thiab qhov kub ntawm qhov kub ntawm qhov kub. kawg thiab txias kawg yog ΔT_HC, yog li thaum lub caij txias kawg yuav muaj lub zog thermoelectromotive V_tawm.

Thaum cov hluav taws xob sab nraud infrared irradiates cheeb tsam nqus ntawm lub ntes, qhov chaw nqus nqus nqus cov hluav taws xob infrared thiab hloov mus rau hauv lub zog hluav taws xob.Qhov kub gradient yuav tsim nyob rau hauv qhov chaw kub kub thiab qhov chaw txias txias.Los ntawm Seebeck nyhuv ntawm cov khoom siv thermocouple, qhov kub thiab txias gradient tuaj yeem hloov mus rau hauv qhov hluav taws xob teeb liab tawm.

Thermoelectric Effect (Seebeck Effect)

Lim(tus yam ntxwv ntawm IR lim yog xaiv tau): xaiv cov kab hluav taws xob infrared, zam lwm qhov wavelength ntawm lub teeb kom cuam tshuam rau lub sensor.

Cap: kev txhawb nqa cov qauv ntawm IR lim.

TPS Chip: kom paub qhov teeb liab infrared uas dhau los ntawm IR lim.

Lub taub hau: kev txhawb nqa mechanical qauv ntawm nti.

Chip Thermistor(Yeem): saib xyuas qhov chaw txias txias ntawm TPS nti.

ASIC ua Circuit Court nti(optional, conditioning signal output): conditioning the analog output signal of TPS nti.

Nws tuaj yeem pom tau tias txoj hauv kev ua haujlwm ntawm cov thermopile sensor nti yog ob zaug kev hloov pauv ntawm lub cev ntawm "lub teeb-thermal-hluav taws xob".Txhua yam khoom saum toj kawg nkaus xoom (xws li tib neeg lub cev) emits infrared rays, yog tias xaiv qhov tsim nyog wavelength los ntawm cov lim infrared (5-14μm band window), thaum cov khoom siv infrared rhiab heev ntawm cov nti absorbs lub tshav kub infrared thiab tig lub teeb rau hauv tshav kub. , uas ua rau qhov kub thiab txias ntawm thaj tsam nqus, qhov kub sib txawv ntawm qhov chaw nqus thiab qhov chaw txias txias yog hloov mus rau hauv qhov hluav taws xob tawm hluav taws xob los ntawm ntau pua pawg ntawm micro thermocouples series kev sib txuas, thiab cov teeb liab infrared tau kuaj pom tom qab qhov hluav taws xob tso tawm. tsim tawm.

Pom los ntawm cov qauv, Sunshine Technologies's thermopile infrared sensor txawv ntawm cov khoom zoo tib yam, nws cov qauv yog "hollow out".Muaj qhov teeb meem tseem ceeb rau cov qauv no, uas yog, yuav ua li cas nteg ib txheej ntawm 1μm tuab suspension zaj duab xis ntawm thaj tsam ntawm 1 hli nkaus xwb.², thiab xyuas kom meej tias cov yeeb yaj kiab tuaj yeem muaj qhov hloov pauv txaus los hloov lub teeb infrared rau hauv cov teeb liab hluav taws xob tso tawm, kom ua tau raws li lub teeb liab lub zog xav tau ntawm lub sensor.Nws yog qhov tseeb vim tias Sunshine Technologies tau kov yeej thiab paub txog cov thev naus laus zis tseem ceeb no uas nws tuaj yeem rhuav tshem lub sijhawm ntev ntawm cov khoom lag luam txawv teb chaws ntawm ib qho mob stroke.

Post lub sij hawm: Dec-01-2020