What instrument is a laser rangefinder?

Laser rangefinder is a kind of measuring instrument that uses laser to measure distance. Mainly used in military and industrial fields. It has the advantages of fast and accurate measurement, but it also has the disadvantages of being afraid of water and dust and being dangerous to use. Accuracy is a very important parameter when using laser rangefinder. According to different measurement methods, the accuracy of laser rangefinder will be different, which can generally reach 1 mm, and a good laser rangefinder has higher accuracy. Let's see what a laser rangefinder is. 1. What is the laser rangefinder?

Laser rangefinder is an instrument that uses a certain parameter of modulated laser to measure the target distance. It was invented in 1960 by Man Mei, a scientist of Hughes Aircraft Company of the United States, and was applied in the military field in 196 1 year. As the price of laser rangefinder keeps dropping, laser rangefinder is gradually applied to industry.

With the development of laser rangefinder, it is widely used in various fields, including topographic survey, battlefield survey, tank, plane, ship and artillery ranging targets, and height measurement of clouds, planes, missiles and artificial satellites. Industry is mainly used in industrial measurement and control, mines, ports and other fields.

Second, what is the accuracy of the laser rangefinder?

Laser rangefinder is a measuring tool, and its accuracy is an important performance index. The measurement accuracy of laser rangefinder generally refers to the specified measurement error based on ordinary measurement environment, so is the laser rangefinder high in accuracy?

There are two ways to use laser rangefinder: pulse method and phase method. Generally, the absolute accuracy of laser rangefinder with pulse emission is low, but it can achieve better relative accuracy when used for long-distance measurement. The accuracy of the laser rangefinder for phase test can reach 65438 0 mm.

It should be noted that the precision error of laser rangefinder is not proportional to the measured distance, and it is the same in the whole distance, but if the distance is too long, the error will increase by 0.5 mm/100 m.

Third, the advantages and disadvantages of laser rangefinder

1, the advantages of laser rangefinder

The sensor of the laser rangefinder is just a light spot, which can be used for both small holes and distant objects. Moreover, the laser has a fast response time and can be used for rapid measurement, which is not affected by the material, color and inclination of the target and realizes accurate measurement.

2. Disadvantages of laser rangefinder

If there is water and ash on the surface of the laser range finder, the light will reflect back and produce false signals; Moreover, laser is harmful to human eyes and dangerous to use.