Calibration device and device of laser cloud particle imager

Abstract

The invention discloses a calibration device of a laser cloud particle imager, the calibration device comprises an electric translation platform, an electric lifting platform, a multi-axis displacement platform, a DC motor, a glass slide disk and a calibration glass bead, wherein a table top of the electric translation platform is fixedly connected with a bottom surface of the electric lifting platform, the table top of the electric lifting platform is fixedly connected with the bottom surface of the multi-axis displacement platform, the table top of the multi-axis displacement platform is fixedly connected with the DC motor through a pinboard, a rotating shaft of the DC motor is fixedly connected with the glass slide disk, the calibration glass bead is adhered on the glass slide disk, andthe electric translation platform, the electric lifting platform and the DC motor are connected with a computer via cables. The invention further discloses a calibration method of the laser cloud particle imager. According to the calibration device disclosed by the invention, cloud particles are simulated as real as possible by using the calibration glass bead with a standard size, a median comparison voltage of the laser cloud particle imager and an enlargement factor of an imaging optical system can be calibrated in cooperation with the precise adjustment of the multi-dimensional combination translation platform, and the real imaging depths of field of multiple particles are measured.

Description

technical field [0001] The invention relates to the technical field of meteorological airborne detection, in particular to a calibration device and method for a laser cloud particle imager. Background technique [0002] The laser cloud particle imager can be used to directly image cloud droplet particles, and can measure the corresponding particle size spectrum, calculate water content and number concentration and other parameters, and its measurement data is of great importance for studying the physical process of cloud precipitation and guiding weather modification operations effect. The laser cloud particle imager uses a red semiconductor laser as the light source, and a 64-element one-dimensional linear array photodetector to receive the signal. During the measurement, the laser cloud particle imager is fixed under the wing of the aircraft. When the aircraft flies in the cloud, the cloud droplet particles fly along the direction perpendicular to the optical path relativ...

AI Technical Summary

Problems solved by technology

The speed of the motor of this device is fixed, and the linear speed of the black dot is much lower than the actual working airspeed of the CIP. It can only be adjusted manually in a small range, and there is no precise scale, so it is impossible to measure the imaging depth of cloud particles of various sizes.

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