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A Measurement Method of Solar Absolute Radiometer Based on Energy Correction

An absolute radiation and measurement method technology, applied in the field of solar irradiance measurement, can solve the problems of increasing the time to restore the equilibrium state, destroying the thermal equilibrium state, cavity temperature pulse, etc., to shorten the time to restore the equilibrium and shorten the measurement cycle Effect

Active Publication Date: 2020-07-03
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

However, in the actual measurement process, even if the sum of the compensation electric power and the optical power is equivalent to the electric calibration power, the chamber temperature will generate obvious pulses when the shutter is opened and closed, thereby destroying the thermal equilibrium state and increasing the time to restore the equilibrium state , which in turn leads to an increase in the measurement period

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  • A Measurement Method of Solar Absolute Radiometer Based on Energy Correction
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  • A Measurement Method of Solar Absolute Radiometer Based on Energy Correction

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[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0027] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate cir...

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Abstract

The embodiment of the invention discloses a measurement method of a solar absolute radiometer based on energy correction. According to the cavity temperature response model, this method analyzes the cause of cavity temperature fluctuations in traditional SIAR when the shutter is opened and closed, and proposes the concept of unequal energy, and maintains the thermal balance of the black body cavity by compensating the unequivalent energy, compensating for the opening and closing of the cavity. The temperature fluctuation at the time of shutter and shutter closing shortens the time for the black body cavity to recover thermal equilibrium, thereby shortening the measurement cycle.

Description

technical field [0001] The invention relates to the technical field of solar irradiance measurement, in particular to a measurement method of a solar absolute radiometer based on energy correction. Background technique [0002] The total solar irradiance (Total Solar Irradiance, TSI) can calculate the solar constant, which is of great significance to the research of solar physics and upper atmosphere. At present, the total solar irradiance is mainly measured by the solar irradiance absolute radiometer. The solar irradiance radiometer is an electrical alternative to radiometers with measurements directly traceable to electrical currents in the International System of Units (SI). The core detector of the solar irradiance absolute radiometer is a black body cavity, and the optical power is reflected and absorbed many times in the black body cavity, so that the cavity temperature reaches a new equilibrium state. Based on the measurement principle of electrical substitution, th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/52G01J5/46G01J5/12
CPCG01J5/12G01J5/46G01J5/52G01J5/80
Inventor 衣小龙叶新宋宝齐方伟王凯
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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