Dual-barrel multi-view-field solar radiometer based on CCD (Charge-coupled Device) automatic tracking

Abstract

The invention discloses a dual-barrel multi-view-field solar radiometer based on CCD (Charge-coupled Device) automatic tracking. The dual-barrel multi-view-field solar radiometer comprises a tracking lens barrel and two optical signal lens barrels; the lens barrels are co-driven to move by a horizontal-axis motor and a pitching motor; a CCD detector detects optical signals in the tracking lens barrel, and the signals are acquired by an image acquisition card; optical signals in the optical signal lens barrels enter six light filters, and sunlight of only a certain waveband is allowed to pass through; the six light filters and two black screens are symmetrically mounted on a light filter disk; the rotation of the light filter disk is controlled by a stepper motor; the optical signals passing through the light filters enter two groups of microporous diaphragms; the optical signals passing through the two groups of microporous diaphragms are detected by a photodetector; and the signals are fed into a data acquisition card after be subjected to amplification and conditioning. The dual-barrel multi-view-field solar radiometer based on CCD automatic tracking not only can measure the atmospheric optical thickness under clear weather, but also can invert the atmospheric optical thickness and effective dimension of cirrus cloud through directly measuring ratios of different viewing field angles to light intensity signals, and has the advantages of high accuracy, simple structure, and the like.

Description

Technical field [0001] The present invention relates to the field of photoelectric detection technology, and in particular to a double-tube multi-tube multi-tube based on CCD automatic tracking [0002] Field of view solar radiometer. Background technique [0003] After years of continuous exploration, solar radiometer technology has become mature in China. The DTF series solar radiometer, also called heliophotometer, developed by the Anguang Institute of Chinese Academy of Sciences, is an instrument used to measure the spectral characteristics of direct solar radiation. Solar radiometers can be used to simultaneously measure direct solar radiation and sky scattered radiation (ie, solar halo) of different wavelengths. From direct radiation measurement, the atmospheric optical thickness of each wavelength can be obtained. Atmospheric optical thickness indicates the ability of light waves of a certain wavelength to penetrate the entire atmosphere vertically, and the turbidity o...

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