Hunting Rangefinder ArcheryThe accuracy of laser rangefinder mainly depends on the calculation accuracy of laser sending and receiving time. According to the adopted technology and application occasions, laser rangefinders can be divided into conventional laser rangefinders (mainly used for outdoor sports, hunting, etc.), with an accuracy of about 1m, and high-precision laser rangefinders for surveying and mapping, land surveying, construction, engineering applications, military, etc.
Phase method rangefinder is a rangefinder that modulates the laser phase and obtains the distance by measuring the phase difference of the reflected laser. Because the reflected laser phase needs to be detected, the received signal needs to have strong intensity. Considering the safety of human eyes, telescope systems such as pulse laser rangefinder can not be used, and the range is small. The typical ranging range is 0.5mm to 150m. Generally speaking, the phase laser rangefinder adopts 635 nm (red vision) laser as the debugging object, commonly known as infrared rangefinder. However, the definition of laser is not based on color. If 635 nm laser rangefinder is used to directly irradiate human eyes, it will cause irreversible damage. Please use and protect correctly.
Because the propagation speed of ultrasonic wave in the air is greatly affected by temperature, humidity and air pressure, the measurement error is large. Due to the long wavelength and short propagation distance of ultrasonic, the measurement distance of general ultrasonic rangefinder is short and the measurement accuracy is low. However, as a fan, ultrasonic transmission has more characteristics than photoelectric rangefinder. It is widely used in safety protection, cable height measurement, obstacle detection and other fields.
Laser rangefinder has been widely used in electric power, water conservancy, communication, environment, architecture, geology, police, fire protection, blasting, navigation, aviation, railway, counter-terrorism / military, agriculture, forestry, real estate, leisure / outdoor sports and other fields.