Infrared rangefinder yog ib qho cuab yeej siv lub teeb infrared modulated rau qhov tseeb, thiab qhov ntau yog feem ntau 1-5 kilometers. Lub hauv paus ntsiab lus ntawm non-diffusion ntawm infrared rays yog siv: vim hais tias infrared rays muaj ib tug me me refractive index thaum lawv dhau los ntawm lwm yam khoom, ntev-ntev rangefinders yuav xav txog infrared rays, thiab propagation ntawm infrared rays yuav siv sij hawm. Thaum cov kab hluav taws xob infrared tawm ntawm qhov rangefinder Cov khoom siv hluav taws xob tau rov qab los thiab tau txais los ntawm rangefinder, thiab tom qab ntawd qhov kev ncua deb ntawm infrared tuaj yeem xam raws li lub sijhawm ntawm infrared mus rau qhov tau txais thiab kev nthuav tawm ceev ntawm infrared. Qhov zoo ntawm infrared ntau yam yog tias nws pheej yig, yooj yim los tsim, thiab nyab xeeb. , qhov kev ncua deb yog luv, thiab lub directionality tsis zoo. Infrared rangefinder thiab ultrasonic rangefinder thev naus laus zis kuj rov qab, thiab tam sim no lub tswv yim dav dav ntawm infrared rangefinder, uas yog, laser rangefinder.
