Rangefinder. Wednesday , May 16th , 2018 - 13:03:37 PM
Today we will talk about just how a laser rangefinder functions. The distance to an objective is calculated by a rangefinder by the rebounding of a laser light beam off the object to be ranged. The time it takes for the laser light beam to reach the target and return is measured by a high speed digital clock. This time that commonly takes less than one second, is then computed by the rangefinder and displayed as a distance on the rangefinders build in screen.
Dynamics Laser Rangefinders use an invisible, narrow laser that is pointed at an object to determine the distance it is from the user. The laser beam is then reflected off that object and back to the laser rangefinder instrument. The rangefinder then uses a super high speed clock to determine the amount of time it took for the laser to bounce back and then uses a mathematical equation to calculate the amount of distance between the rangefinder and the target object. The whole process is called "Time of Flight" in scientific terms.
Since laser rangefinders bounce the laser off the target, and because all targets have a certain reflectivity, part of the distance the rangefinder calculates is based on this reflective nature of the target. In other words, "hard" objects like rocks and cliffs can be easily measured at greater distances than "soft" targets like deer or other wildlife.
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