Solar photometer based on mobile unstable platform

Abstract

The invention discloses a sun photometer based on a mobile unstable platform. The sun photometer comprises a gyro stabilized platform, a two-dimensional turntable arranged on the gyro stabilized platform, a single-arm probe, a large-view-field fisheye imaging system, a lower computer control system and an industrial personal computer, wherein two parallel light cylinders, namely a measuring light cylinder and an imaging light cylinder, are mounted at a front end of the single-arm probe; the imaging light cylinder is a small-view-field fine tracking imaging system, and the measuring light cylinder is used for collecting data of sunlight and transmitting the collected data to the lower computer control system; the large-view-field fisheye imaging system is used for capturing azimuth information of the sun and transmitting the azimuth information of the sun to the industrial personal computer; the industrial personal computer serves as an integrated operation platform and controls operation of all devices in a coordinated mode, and the lower computer control system controls a two-dimensional rotary table to rotate so that automatic tracking and signal measurement of the sun can be achieved. According to the sun photometer, solar spectrums of a plurality of discrete wavebands of 400-1100 nm can be observed at the same time under a mobile unstable platform.

Description

technical field [0001] The invention relates to the technical field of photoelectric detection, in particular to a sun photometer based on a mobile unstable platform. Background technique [0002] The solar photometer, also known as the solar radiometer, is an instrument mainly used to measure the spectral characteristics of direct solar radiation. It obtains water vapor and atmospheric aerosol by measuring the direct solar radiation of different wavelengths with the change of the sun's altitude angle. Therefore, it is an instrument for atmospheric optics and meteorology. Good equipment for research and air pollution monitoring. However, because its traditional tracking method is a combination of astronomical apparent sun trajectory tracking method and four-quadrant method, the rough and fine tracking technology is based on a stable platform and the north-south azimuth can be positioned, so it can only be measured on a fixed platform. . And the four-quadrant method is to u...

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Problems solved by technology

However, because its traditional tracking method is a combination of astronomical apparent sun trajectory tracking method and four-quadrant method, the rough and fine tracking technology is based on a stable platform and the north-south azimuth can be positioned, so it can only be measured on a fixed platform.

And the four-quadrant method is to use the four-quadrant light intensity distribution of the four-quadrant detector to track the sun. This method is too small to track the field of view and can only track slowly changing targets.

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