Full-automatic visible short infrared subdivided spectral irradiance meter

A spectral irradiance and short-wave infrared technology, which is applied in the field of environmental remote sensing observation, can solve the problems of blank development of high-end solar spectral irradiance meters, and achieve the effects of avoiding errors, strong adaptability, and guaranteed accuracy

Inactive Publication Date: 2010-11-10
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The purpose of this invention is to provide a fully automatic visible short-wave infrared subdivision spectral irradiance meter to solve the problem that the development of high-end solar spectral irradiance meters in the field of domestic environmental remote sensing science is still blank

Method used

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  • Full-automatic visible short infrared subdivided spectral irradiance meter
  • Full-automatic visible short infrared subdivided spectral irradiance meter
  • Full-automatic visible short infrared subdivided spectral irradiance meter

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Embodiment Construction

[0029] Such as figure 1 , figure 2 shown. Fully automatic visible short-wave infrared subdivision spectral irradiance meter, including integrating sphere 1, the top of integrating sphere 1 has a light entrance, and there is an F4 small baffle 9 to block direct light and primary reflected light inside, driven by a stepping motor 7 The arc-shaped light blocking strip 8 that drives it to rotate can be blocked above the light entrance, the inner arc of the light blocking strip 8 faces the integrating sphere 1, and the light exit of the integrating sphere 1 is connected to the bundled optical fiber 2; the measuring body is monochromatic The instrument 10 includes three modularized spectroscopic detection units with different working wavelength ranges. The outlet end of the bundled optical fiber 2 is divided into three beam-splitting optical fibers and connected to the three spectroscopic detection units one by one. Each spectroscopic detection unit includes a filter Optical shee...

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Abstract

The invention discloses a full-automatic visible short infrared subdivided spectral irradiance meter comprising an integrating sphere, a monochromator, and an analog signal processing circuit, wherein an arc light blocking strip driven by a stepping motor can be blocked above an incidence light port so as to shade the direct solar radiation; concentrated beam type optical fiber is introduced in an emergent light port of the integrating sphere; and an output signal of an array detector of the monochromator is conducted in a signal process circuit through a signal wire. The invention adopts the astronomy theory and the related algorithm of higher mathematics to obtain angle of each rotation so as to shade the signal of the direct solar radiation, thereby measuring the angle of diffuse sky radiation illumination. Three spectral detection units of the invention realize the modularization, can be combined according to the different chooses of a user so as to meet the requirement of the different users on the detection wave band range and has strong adaptability.

Description

technical field [0001] The invention relates to the field of environmental remote sensing observation, in particular to a fully automatic visible short-wave infrared subdivision spectral irradiance meter for research and observation of atmospheric optical properties and solar radiation transmission. Background technique [0002] The solar spectroscopic irradiance meter is mainly used in the research and observation of solar radiation, the study of the optical properties of the atmosphere, and the study of the energy transported by the sun to the earth. Using solar radiation as the light source, two parts of irradiance can be measured: ① the total irradiance of the upper 2π hemisphere space; ② the diffuse irradiance of the sky and the atmosphere to the sun, and subtract the two to obtain the direct solar irradiance. Optical parameters such as atmospheric optical thickness and atmospheric transmittance can also be retrieved through these parameters. These are important resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28G01J3/02
Inventor 张运杰洪津李新龚平袁银麟孟凡刚刘强
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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