Popularization of laser rangefinders

Laser rangefinder (Laser rangefinder), is the use of modulation of a certain parameter of the laser to achieve the distance measurement of the target instrument. Laser rangefinder measurement range of 3.5 ~ 5000 meters.

According to the distance measurement method is divided into phase method rangefinder and pulse method rangefinder, pulse laser rangefinder is in the work of the target shot a beam or a sequence of short pulse laser beam, by the photoelectric element to receive the target reflected laser beam, the timer determines the laser beam from the time of launching to receiving, calculating the distance from the observer to the target. Phase method laser rangefinders utilize the detection of the phase difference that occurs between the emitted and reflected light as it propagates through space to detect distance. Laser rangefinders are lightweight, small, easy to operate, fast and accurate, with an error of only one-fifth to one-hundredth of that of other optical rangefinders.

Laser rangefinder is widely used in terrain surveying, battlefield surveying, ranging of tanks, aircraft, ships and artillery to the target, measuring the height of clouds, aircraft, missiles and artificial satellites. It is an important technical equipment to improve the accuracy of high tanks, airplanes, ships and artillery. As the price of laser rangefinders continues to fall, the industry has gradually begun to use laser rangefinders, which can be widely used in industrial measurement and control, mining, ports and other fields.