Cov qauv tsim ntawm Infrared Radiation Detector
(1) Lub tshuab kho qhov muag feem ntau yog siv los tsim lub teeb infrared nyob rau hauv ib qho kev sib tw wavelength. Optical system yog tsim los ntawm lub teeb ci thiab lub lens. Qhov sib txawv ntawm lub teeb muaj peev xwm hluav taws xob sib txawv. Cov hluav taws xob sib txawv tuaj yeem tau txais los ntawm kev xaiv cov hluav taws xob sib txawv.
(2) Raws li cov khoom siv, lub lens xaiv xa cov teeb infrared nyob rau hauv ib qho ntawm cov wavelengths, thaum absorbing infrared lub teeb nyob rau hauv lwm yam wavelength ranges. Kev sib xyaw ua ke ntawm ob tuaj yeem ua rau lub tshuab kho qhov muag tsim lub teeb infrared nyob rau hauv ib qho kev sib tw wavelength. Feem ntau, cov khoom siv kho qhov muag iav thiab quartz tso cai rau lub teeb infrared ntawm 0.75 mus rau 3 μm kom dhau mus; Cov khoom siv kho qhov muag kub kub xws li magnesium fluoride thiab magnesium oxide, Lub teeb infrared ntawm 3-5 μm raug tso cai hla; lub teeb infrared ntawm 5-14 μm tau yooj yim nkag mus rau cov khoom siv kho qhov muag xws li germanium, silicon, thiab kub-pressed zinc sulfide. Cov ntaub ntawv no muab kev yooj yim rau kev txiav txim siab λm, thiab nteg cov khoom siv hauv paus rau kev siv lub teeb hluav taws xob sib txawv los tsim ntau yam infrared radiators.
(3) Muaj ob lub ntsiab ntawm infrared receivers:
① Cov khoom kub-rhiab heev. Siv lub thermistor kom tau txais hluav taws xob infrared. Qhov kev hloov pauv tsis zoo tshwm sim los ntawm cov nyhuv thermal hloov lub zog hluav taws xob infrared rau hauv cov teeb liab hluav taws xob.
② Optoelectronics. Kev siv cov khoom siv hluav taws xob kom tau txais cov hluav taws xob infrared ua rau cov nyhuv photoelectric, yog li hloov cov hluav taws xob hluav taws xob hluav taws xob rau hauv cov teeb liab hluav taws xob. Cov nyhuv photoelectric nrawm dua li cov nyhuv thermal, vim hais tias lub sij hawm teb ntawm photoelectric sensor yog luv dua li ntawm thermal sensor. Hom kub-rhiab heev tuaj yeem nqus tau tag nrho cov hluav taws xob hluav taws xob ntawm txhua lub wavelength, thaum lub photoelectric hom muaj qhov txwv wavelength.
Raws li peb txoj cai ntawm hluav taws xob hluav taws xob thiab ntau yam khoom ntsuas, cov tshuab kho qhov muag sib txawv thiab cov khoom siv hluav taws xob tuaj yeem xaiv tau, thiab ntau yam infrared optical ntsuas kub ntsuas ntsuas tshuab tuaj yeem tsim tau raws li cov xwm txheej tshwj xeeb.
