Optical initial radiation intensity calibration method, device and system

A radiation intensity and calibration technology, applied in the field of atmospheric optics, can solve the problems of measurement result error, difficult to achieve measurement conditions, poor atmospheric stability, etc., and achieve the effect of short measurement time

Inactive Publication Date: 2015-10-07
NO 63655 TROOPS OF THE CHINESE PEOPLES LIBERATION ARMY
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Problems solved by technology

But in fact, it is very difficult to meet the above-mentioned measurement conditions required by the calibration method. The two are constantly changing with the rotation and revolution of the earth and the atmosph

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  • Optical initial radiation intensity calibration method, device and system
  • Optical initial radiation intensity calibration method, device and system
  • Optical initial radiation intensity calibration method, device and system

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0038] At present, when measuring the optical parame...

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Abstract

The invention relates to the field of atmospheric optics, and specifically relates to an optical initial radiation intensity calibration method, device and system. The method comprises the steps: obtaining an earth-sun distance correction factor and relative air mass at a moment of measurement, and a voltage value of light, with a given wavelength, outputted through a measurer when the relative air mass is within at least one measurement section, wherein the maximum difference between the maximum value and the minimum value of the relative air mass in the measurement section is two; carrying out reciprocal transformation of the relative air mass corresponding to the voltage value outputted by the measurer; and employing a least square regression algorithm to calculate a calibrated voltage value in each measurement section according to the Beer-Lambert law, the voltage value of light, outputted through a measurer, with the given wavelength, the relative air mass after reciprocal transformation and the earth-sun distance correction factor at the moment of measurement. The method can reduce the measurement requirements of calibration, can complete measurement in a short time, reduces the measurement errors, and improves the practicability of measurement.

Description

technical field [0001] The invention relates to the field of atmospheric optics, in particular to a method, device and system for calibrating the initial radiation intensity of light. Background technique [0002] At present, the research on the optical properties of the whole atmosphere aerosol is playing an increasingly important role in many disciplines, such as climate change, laser communication, and laser transmission through the atmosphere. When measuring the optical parameters of the entire atmosphere, such as the transmittance of the entire atmosphere and the optical thickness of aerosols, the Lambert-Beer law (the basic law of light absorption) is generally used, which states that the intensity of radiation transmitted through an extinction medium follows an exponential function Attenuation, whose independent variable is the integral of the extinction coefficient to the distance of the transmission path. When measuring and inverting based on this law, it is necessa...

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Application Information

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IPC IPC(8): G01J1/42
Inventor 李志朝强希文宗飞吴敏赵军卫付安镇常金勇
Owner NO 63655 TROOPS OF THE CHINESE PEOPLES LIBERATION ARMY
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