Sky brightness instrument

A brightness and sky technology, applied in the field of atmospheric science experimental measurement instruments, can solve problems such as the limitation of sky brightness, and achieve the effect of increasing portability, stability, and real-time performance.

Active Publication Date: 2013-10-30
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sky background luminance measuring instrument to solve the problem that the prior art has limitations in measuring sky luminance

Method used

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Embodiment Construction

[0026] see figure 1 , Figure 5, the sky brightness meter, including a chassis 10, the chassis 10 is equipped with a horizontal rotation arm 11 with a horizontal zero positioning device perpendicular to the chassis, a pitching rotation arm 12 with a pitching zero positioning device parallel to the chassis, the chassis 10 is equipped with a single-chip control system 7 and a signal processing system 3 connected to the single-chip control system 7, a motor drive control module 5, a reset system 6, a serial communication module 8, an automatic zero correction module 4, and the pitching arm 12 is installed At the top of the horizontal rotating arm 11, the tilting rotating arm 12 is covered with a detector box 13, and the front end optical path system 1 and the sun tracking module 2 are installed on the lower end surface of the detector box 13. The front end optical path system 1 includes a black inner wall. The large lens barrel 14 is provided with two circular aperture diaphragm...

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Abstract

The invention discloses a sky brightness instrument. The sky brightness instrument is horizontally placed in a manner that the front face faces south. A single chip microcomputer control system controls an automatic zero correction module to enable the instrument to be automatically and rightly returned back to the initial position on two degrees of freedom in horizontal and pitching directions; a user sends a measurement order under measurement software of an upper computer and the single chip microcomputer control system controls a solar tracking module and a motor driving control module to turn the instrument to a pre-set direction in the sky or carry out scanning and measurement on the whole sky; sky scattered lights are received by a front-end light path system and are converted into a simulated voltage signal; the simulated voltage signal is processed by a signal processing system and is converted into a digital signal to be conveyed into the single chip microcomputer control system; and the single chip microcomputer control system controls a serial communication module to upload the signal to the upper computer to be stored. The sky brightness instrument has two measurement modes, so that the whole sky can be scanned and measured and the fixed point measurement can be carried out on a fixed direction; and thus sky brightness instrument has the advantages of portability, stability and instantaneity.

Description

technical field [0001] The invention relates to the field of measuring instruments for atmospheric science experiments, in particular to a sky brightness meter. Background technique [0002] When using ground-based equipment to detect air targets, the atmosphere cannot be ignored. It redistributes part of the solar radiation energy to form the spatial distribution of scattered light brightness in the atmosphere, that is, the concept of "sky brightness". On the one hand, in order to obtain radiation information of air or space targets, the influence of the atmosphere must be deducted. When observing an object, the brightness difference between the object and the background plays a decisive role. Therefore, knowing the brightness distribution of the sky is the first step in space target recognition. On the other hand, the brightness of the sky is mainly the result of the scattering of solar radiation by atmospheric molecules and atmospheric aerosol particles, which contains...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/08G05B19/042
Inventor 徐文清贺巧妙任元鹏高亦桥詹杰徐青山
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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