The distinction between a handheld laser rangefinder and a telescopic rangefinder
A laser is used in laser range as the light source. The two types of lasers are continuous lasers and pulsed lasers, respectively. Phase laser ranging is performed using helium-neon, argon ion, krypton-cadmium, and other gas lasers. Infrared ranging is performed using double heterogeneous gallium arsenide semiconductor lasers. Pulsed laser ranging is performed using solid-state lasers like ruby and neodymium glass.
It is now possible to measure the distance to far-off targets, such as artificial earth satellites and the moon, thanks to the laser rangefinder's ability to operate day and night, improve distance measurement accuracy, and significantly reduce weight and power consumption. The operation can be done day or night and the measuring range can reach roughly 40 kilometers if the laser is continually fired. Although the absolute accuracy is typically low when the laser is emitted in pulses, it is possible to acquire good relative accuracy when measuring a great distance.
Handheld Laser Rangefinder
The measurement distance is generally within 200 meters, and the accuracy is about 2mm. This is currently the most widely used laser range finder. Functionally, in addition to measuring the distance, it can also generally calculate the volume of the measured object.
Telescopic Laser Rangefinder
The measurement distance is generally about 600-3000 meters. This type of range finder has a relatively long measurement distance, but the accuracy is relatively low, and the accuracy is generally about 1 meter. The main application range is long-distance measurement in the field.
Industrial Laser Rangefinder
The measurement distance is about 0.5-3000 meters, the accuracy is within 50mm, and a reflector should be added 300 meters away, and some products can also measure the speed while measuring the distance. 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 inaccessible objects, such as pipe fillings, pipes, containers, etc., and Water level measurement. Typical sensors are LDM301, LDM4x.
