Laser range finder ranging principle and action method With the development of science and technology, it seems that most people do not know about laser range finder and do not understand laser range finder. Some workers even use a tape measure to measure the distance, use a pen to calculate the area, volume, and so on. The following introduces the principle and usage of the laser rangefinder, which allows workers to work and study with high efficiency and high precision. A laser rangefinder is an instrument that uses a laser to accurately measure the distance to a target. The laser rangefinder emits a very thin laser beam to the target when it is working, and the photoelectric element receives the laser beam reflected by the target. The timer measures the time from the emission to the reception of the laser beam, and calculates the distance from the observer to the target. If the laser is continuously emitted, the measuring range can reach about 40 kilometers, and the fluorine-lined butterfly valve can operate day and night. If the laser is pulsed, the absolute accuracy is generally low, but for long-distance measurement, it can achieve good relative accuracy
