Pulsed laser lateral capture and measurement system and method

Abstract

The invention belongs to the technical field of pulsed laser ranging and discloses a pulsed laser lateral capture and measurement system and method. A high-sensitivity photoelectric detection module is used for capturing an atmosphere lateral scattering signal of laser pulses emitted by a detected pulse laser and converting the weak lateral scattering signal into a standard digital pulse signal through photovoltaic conversion and signal amplification; a CPLD data acquisition module is used for receiving the digital pulse signal of the high-sensitivity photoelectric detection module and performing digital logical processing; an ARM data processing and controlling module is used for receiving processing results of the CPLD data acquisition module and generating such results as the required pulse laser number, time intervals and the like; a communication module is used for sending the test results to other computers or data processing systems; and a human-computer interface module is used for providing human-computer interaction for an operator, and meanwhile, saving and outputting the results. The pulsed laser lateral capture and measurement system is complete in function, simple to operate, remarkable in economic and social benefit and high in popularization value.

Description

technical field [0001] The invention belongs to pulse laser ranging, in particular to a pulse laser lateral capture and measurement system and method. Background technique [0002] At present, pulsed laser ranging is one of the application fields in the field of laser technology, and it is an important means of long-distance measurement. It uses the speed of light to measure the distance, the measurement speed is fast, the precision is high, and it is not restricted by the terrain. It has a wide range of applications in geodesy, mining, architecture, urban construction and other fields. Laser ranging technology was first used in the military. With the improvement of the practicality of dye Q-switching technology and OPO technology, the cost of pulsed laser ranging machines has continued to decline, and it has entered the civilian market. Because the laser has the characteristics of good directionality, high brightness and high coherence, the laser ranging technology applie...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the lower limit of measurement is limited by the focal length of the lens, the diameter of the lens and the radius of the light target, and the backward single-angle or multi-angle scattering method is difficult to control due to the small measurement angle, and the scattered light is extremely weak.

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