1. In terms of accuracy, the measurement accuracy of the ultrasonic rangefinder is at the centimeter level, and the measurement accuracy of the laser rangefinder is at the millimeter level;
2. Nyob rau hauv cov nqe lus ntawm kev ntsuas ntau, qhov kev ntsuas ntau ntawm ultrasonic rangefinders feem ntau yog nyob rau hauv 80 meters, thaum lub sij hawm ntsuas ntawm handheld laser rangefinders tuaj yeem ncav cuag 200 meters, thiab qhov ntsuas ntau ntawm laser rangefinder telescopes tuaj yeem ncav cuag ntau pua kilometers, lossis txawm nyob deb. deb (qhov ntsuas qhov tseeb ntawm lub tshuab ntsuas hluav taws xob laser feem ntau yog 1 meter lossis kaum centimeters).
3. Ultrasonic range finder yog ib qho yooj yim los qhia qhov yuam kev. Vim hais tias lub ultrasonic range finder emits suab nthwv dej thiab muaj cov yam ntxwv ntawm cov kiv cua-zoo li emission ntawm suab tsis, thaum muaj ntau yam teeb meem nyob rau hauv lub suab tsis dhau, ntau lub suab tsis yuav rov qab, thiab yuav muaj kev cuam tshuam ntau, thiab nws yog. yooj yim qhia qhov yuam kev. Lub laser rangefinder yog ib lub teeb me me ntawm lub laser uas tawm thiab rov qab los, yog li ntev npaum li lub beam tuaj yeem dhau mus, yuav luag tsis muaj kev cuam tshuam.
4. Tus nqi ntawm ultrasonic rangefinders ranges ntawm kaum tawm yuan mus rau ob peb puas yuan, thiab tus nqi ntawm laser rangefinders ranges ntawm ob peb puas yuan mus rau ob peb txhiab los yog kaum txhiab yuan, nyob ntawm qhov raug thiab nyob deb.
