Lub tswv yim thiab kev faib tawm ntawm rangefinders
Lub rangefinder yog ib hom kev ntsuas kev kwv yees siv los ntsuas qhov deb ntawm lub hom phiaj, co lub rooj / oscillator, thiab ua qhov kev kwv yees trajectory. Muaj ntau ntau hom rangefinders, feem ntau yog cov khoom siv cylindrical ntev uas muaj lub hom phiaj lens, lub qhov muag, thiab cov pob qhov sib txawv, siv los ntsuas qhov deb ntawm lub hom phiaj.
Ultrasonic rangefinder
Ultrasonic rangefinder ntsuas cov yam ntxwv ntawm ultrasonic tsis cuam tshuam rov qab los ntawm cov teeb meem. Lub transmitter ultrasonic emits ultrasonic tsis nyob rau hauv ib qho kev taw qhia thiab pib lub sij hawm nyob rau tib lub sij hawm. Lub ultrasonic tsis propagate nyob rau hauv cov huab cua thiab tam sim ntawd rov qab thaum ntsib obstacles. Ultrasonic receiver tam sim ntawd cuam tshuam lub sij hawm raws li tau txais reflected nthwv dej. Los ntawm kev tshawb nrhiav tsis tu ncua ntawm tus ncha uas cuam tshuam los ntawm kev cuam tshuam tom qab nthwv dej emission, lub sijhawm sib txawv T ntawm kev xa cov nthwv dej ultrasonic thiab tau txais echoes yog ntsuas, thiab tom qab ntawd qhov kev ncua deb L yog xam.
Ultrasonic rangefinder, vim muaj kev cuam tshuam tseem ceeb ntawm ib puag ncig ib puag ncig ntawm ultrasonic tsis, feem ntau muaj qhov ntsuas luv luv thiab ntsuas qhov tseeb. Tam sim no, qhov kev siv tsis yog dav heev, tab sis tus nqi kuj qis, feem ntau nyob ib ncig ntawm ob peb puas yuan.
Infrared rangefinder
Ib lub twj paj nruag uas siv lub teeb infrared modulated rau kev ntsuas qhov deb, nrog qhov ntau ntawm 1-5 mais. Lub hauv paus ntsiab lus ntawm kev tsis sib haum xeeb nyob rau hauv infrared propagation yog siv: vim hais tias lub refractive index ntawm infrared yog heev me me thaum nws dhau los ntawm lwm yam khoom, ntev-ntev rangefinders yuav xav txog infrared tawg, thiab propagation ntawm infrared radiation yuav siv sij hawm. Thaum cov hluav taws xob infrared tso tawm los ntawm qhov rangefinder thiab ntsib lub reflector, nws tau rov qab los thiab tau txais los ntawm rangefinder, thiab tom qab ntawd qhov kev ncua deb tuaj yeem xam raws li lub sijhawm nws yuav siv rau cov hluav taws xob infrared yuav tsum tau tawm thiab tau txais, nrog rau kev nthuav tawm. ceev ntawm infrared tawg
Qhov zoo ntawm infrared ntau yam yog pheej yig, yooj yim rau kev siv, thiab muaj kev nyab xeeb, tab sis qhov tsis zoo yog qhov tseeb tsawg, luv luv, thiab kev coj tsis zoo.
