1. Lub hauv paus ntsiab lus ntawm kev siv infrared range lossis laser range yog dab tsi?
The principle of ranging can basically be attributed to measuring the time required for the light to travel to and from the target, and then calculate the distance D through the speed of light c=299792458m/s and the atmospheric refraction coefficient n. Because it is difficult to measure time directly, it is usually to measure the phase of the continuous wave, which is called a phase-measuring rangefinder. Of course, there are also pulsed rangefinders, typically WILD's DI-3000
Nws yuav tsum raug sau tseg tias qhov ntsuas theem tsis ntsuas theem ntawm infrared lossis laser, tab sis ntsuas cov theem ntawm cov teeb liab modulated ntawm infrared lossis laser. Kev tsim kho kev lag luam muaj lub tes tuav laser rangefinder rau kev ntsuas hauv tsev uas ua haujlwm zoo ib yam.
2. Must the plane of the object to be measured be perpendicular to the light?
Feem ntau, qhov sib txawv ntawm qhov tseeb yuav tsum muaj kev sib koom tes ntawm tag nrho cov kev xav ntawm prism, thiab qhov rangefinder siv rau kev ntsuas hauv tsev yog ntsuas ncaj qha los ntawm kev xav ntawm phab ntsa du, feem ntau vim tias qhov kev ncua deb yog ze, thiab lub teeb liab lub zog ntawm lub teeb pom kev loj txaus. Nws tuaj yeem paub los ntawm qhov no tias nws yuav tsum yog ntsug, txwv tsis pub lub teeb liab rov qab tsis muaj zog heev thiab qhov kev ncua deb tsis tuaj yeem tau txais.
3. Puas yog lub dav hlau ntawm cov khoom ntsuas yog diffuse reflection?
4. Qhov tseeb ntawm ultrasonic ntau yam yog qhov tsawg, thiab nws tsis tshua siv tam sim no.
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