Automatic focus distance adjusting device and method for optical system of laser ceilometer

Abstract

The invention discloses an automatic focus distance adjusting device and method for an optical system of a laser ceilometer and relates to the technical field of laser radars. Lens mounting grooves are formed in one end of a lens housing, an emitting lens and a receiving lens are mounted in the lens mounting grooves respectively and fixed by an emitting lens pressing ring and a receiving lens pressing ring respectively, screw holes used for mounting a laser emitter bracket assembly and a laser receiver bracket assembly are formed in the other end of the lens housing, and a stepping motor is mounted on the laser emitter bracket assembly and connected to a stepping motor control system; a laser emitter assembly is mounted on the laser emitter bracket assembly and fixed by an emitter fixing base, a laser receiver assembly is mounted on the laser receiver bracket assembly and fixed by a receiver fixing base, and an infrared laser display card is placed in front of the lens housing. According to the device and the method, the focal distance is automatically adjusted conveniently and quickly, the consistency of adjustment results of the optical system is ensured, and the device is easy to apply and popularize.

Description

technical field [0001] The invention relates to the technical field of laser radar, in particular to an automatic focal length adjustment device and method of an optical system of a laser nephelograph. Background technique [0002] The laser cloud meter is a photoelectric device that uses the backscattering characteristics of laser light to measure the height of the cloud base and the thickness of the cloud layer. The main factor affecting the measurement performance is whether the relevant parameters of the optical system are adjusted in place. This is mainly because the optical system It acts as an eye in the whole set of equipment, and can see the adjustment of the whole set of eyes of the target. Therefore, the debugging of the optical system is the most important thing in the installation and debugging of the whole set of equipment. At present, the adjustment of the optical system in the domestic and foreign laser cloud measuring instrument is basically based on manual ...

AI Technical Summary

Problems solved by technology

At present, the adjustment of the optical system in the domestic and foreign laser cloud measuring instrument is basically based on manual adjustment. The increase of man-made errors makes it difficult to guarantee the measurement consistency of the laser cloud measuring instrument, especially in mass production, because the poor consistency of the optical system adjustment will affect the measurement performance of the whole machine

Images