Infrared rangefinder
Ib lub twj paj nruag uas siv lub teeb infrared modulated rau qhov sib txawv, thiab qhov ntsuas ntau yog feem ntau 1-5 mais. Lub hauv paus ntsiab lus ntawm non-diffusion ntawm infrared rays yog siv: yog vim li cas yog hais tias lub refractive index ntawm infrared rays yog heev me me thaum dhau los ntawm lwm yam khoom, yog li nyob deb rangefinders yuav xav txog infrared rays, thiab propagation ntawm infrared rays yuav siv sij hawm. Lub teeb emitted yog reflected rov qab los ntawm cov khoom siv reflective thiab tau txais los ntawm rangefinder, thiab tom qab ntawd qhov kev ncua deb tuaj yeem suav tau raws li lub sijhawm los ntawm lub hnub ci infrared emission mus rau thaum nws tau txais thiab kev nthuav tawm ceev ntawm infrared rays.
Qhov zoo ntawm infrared xws li pheej yig, yooj yim rau kev tsim, thiab muaj kev nyab xeeb, tab sis qhov tsis zoo yog qhov tseeb tsawg, luv luv, thiab kev coj tsis zoo.
Ultrasonic rangefinder
Lub ultrasonic ntau yam finder yog ntsuas raws li cov yam ntxwv ntawm ultrasonic tsis muaj kev cuam tshuam los ntawm obstacles. Ultrasonic transmitter emits ultrasonic tsis nyob rau hauv ib qho kev taw qhia, thiab pib lub sij hawm nyob rau tib lub sij hawm. Lub ultrasonic nthwv dej propagates nyob rau hauv cov huab cua, thiab nws rov qab tam sim ntawd thaum nws ntsib ib qho teeb meem ntawm txoj kev. Ultrasonic receiver tam sim ntawd nres lub sij hawm thaum nws tau txais lub reflected yoj. Los ntawm kev tshawb nrhiav tsis tu ncua cov echoes cuam tshuam los ntawm cov teeb meem tom qab cov nthwv dej tsim tawm, lub sijhawm sib txawv T ntawm cov kis ultrasonic tsis thiab cov echoes tau txais yog ntsuas, thiab tom qab ntawd qhov kev ncua deb L yog xam.
Ultrasonic ntau yam finder, vim hais tias lub ultrasonic nthwv dej yog heev cuam tshuam los ntawm ib puag ncig ib puag ncig, yog li qhov kev ntsuas dav dav yog luv luv, thiab qhov ntsuas qhov tseeb yog qhov tsawg. Tam sim no, qhov kev siv tsis yog dav heev, tab sis tus nqi kuj tsawg, feem ntau yog li ob peb puas yuan.
Laser rangefinder
Lub laser rangefinder yog ib qho cuab yeej siv lub laser los ntsuas qhov kev ncua deb mus rau lub hom phiaj. Lub laser rangefinder emits ib tug nyias nyias laser beam rau lub hom phiaj thaum nws ua hauj lwm, thiab lub photoelectric caij tau txais lub laser beam reflected los ntawm lub hom phiaj. nyob deb.
Laser rangefinders yog tam sim no siv ntau tshaj plaws rangefinders. Laser rangefinders tuaj yeem muab faib ua cov khoom siv tes tuav laser rangefinders ( ntsuas qhov deb ntawm 0-300 meters), telescope laser rangefinders ( ntsuas nrug ntawm 500-3000 meters).
