What types of laser rangefinders are there?

With the development of laser technology and the requirements of precision ranging, laser range finder has entered more and more people's work life. Moreover, the laser range finder has the characteristics of good monochromaticity and strong directivity of the laser, and the integration of electronic circuit semiconductorization. Compared with the photoelectric range finder, it can not only work day and night, but also improve the accuracy of ranging, and significantly reduce The weight and power consumption make it possible to measure the distance to a distant target such as an artificial earth satellite or the moon. If the laser is continuously launched, the measuring range can be up to 40 kilometers, and it can work day and night. If the laser is pulsed, the absolute accuracy is generally low, but for long-distance measurement, good relative accuracy can be achieved. Laser range finder is mainly divided into the following three types:

1. Handheld laser range finder

Handheld laser range finder generally does not measure distances very much. The average product range is within 200 meters, and the accuracy is about 2mm. However, its range and measurement accuracy can meet the general measurement needs, and because of its small size and convenient carrying, it is the most widely used laser range finder. In addition to functionally measuring the distance, it is generally possible to calculate the volume of the measured object.

2. Telescope laser range finder

The measuring distance is generally about 600-3000 meters. This type of range finder has a relatively long measuring distance, but the accuracy is relatively low, and the precision is generally about 1 meter. The main application range is field long distance measurement.

3. Industrial laser range finder

The measuring distance is about 0.5-3000 meters, the precision is less than 50mm, and the reflector is added 300 meters away. Some products can also measure the speed while measuring. Mainly used in position control, such as vehicles and ships; positioning cranes; loading and unloading and handling equipment; aircraft measurement, mainly for measuring flight height; metallurgical process control; measuring unsuitable objects, such as pipe fillings, pipes, containers, etc. Water level measurement.

At present, in the field of laser ranging instruments, from simple distance measurement to three-dimensional spatial positioning, the functions and application fields of laser ranging instruments are also constantly developing.