19 Feb 2021 FAQ - Laser Distance Meter
1. What is the working principle for laser distance meter? Laser distance meters generally use two methods to measure distance: Pulse method and phase method. The process of pulsed laser ranging is as the follows: The laser light emitted by the laser distance meter is reflected by the object and then received by the laser distance meter, and the round-trip time of the laser will be recorded by the laser distance measurer. So the distance between the laser distance finder and the object can be measured by the speed of light being multiplied by the round-trip time. The accuracy of pulse method measuring distance is generally about ±1 meter. In addition, the measurement blind zone of this type of laser rangefinder is generally about 15 meters.