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Device for indoor testing of pyrheliometers and its optical axis alignment method

A testing device and pyranometer technology, which is applied in the field of direct pyranometers, can solve problems such as the inability to realize high-precision testing of pyranometers, and achieve the effects of feasible technical method, simple device and convenient operation.

Active Publication Date: 2021-07-13
CHANGCHUN UNIV OF SCI & TECH +2
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Problems solved by technology

[0005] The technical purpose of the present invention is to overcome the technical problem that high-precision testing of pyrheliometers cannot be realized in the prior art, and propose a device for indoor testing of pyrheliometers and its optical axis alignment method

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  • Device for indoor testing of pyrheliometers and its optical axis alignment method
  • Device for indoor testing of pyrheliometers and its optical axis alignment method
  • Device for indoor testing of pyrheliometers and its optical axis alignment method

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. It should be noted that, in the drawings or description, similar or identical elements all use the same reference signs.

[0018] figure 1 It is a schematic composition diagram of a device for direct radiation meter indoor testing and its optical axis alignment method according to the present invention.

[0019] A device for indoor testing of pyrheliometers and an optical axis alignment method thereof, the indoor testing device mainly includes a concentrating system 1, a xenon lamp 2, a steering plane mirror Ⅰ 3, an optical integrator 4, a collimation system 5, and a laser 6. Collimation beam expander system 7, steering plane mirror II 8 and adjustment mechanism 9.

[0020] Amon...

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Abstract

In a device for indoor testing of pyrheliometers and an optical axis alignment method thereof, the indoor testing device mainly includes a concentrating system, a xenon lamp, a steering plane reflector I, an optical integrator, a collimating system, a laser, a collimating expander Beam system, steering plane mirror II and adjustment mechanism. When in use, first ensure that the optical axis of the indoor test device is aligned with the optical axis of the pyrheliometer to be tested; then move the laser and the collimator beam expander out of the device; finally light the xenon lamp, and the beams emitted by the xenon lamp pass through the focusing system, Steering plane mirror Ⅰ, optical integrator, collimation system and steering plane mirror Ⅱ, with a beam with irradiance better than 1353W / ㎡, uniformity better than 0.5%, collimation angle less than 1°, and beam aperture greater than 60mm Projected to the measured direct radiation, thereby realizing the indoor test work of the measured direct radiation.

Description

technical field [0001] The invention relates to pyrheliometer technology, in particular to a device for indoor testing of pyrheliometers and an optical axis alignment method. Background technique [0002] Radiation from the surface of the sun and diffuse radiation from the very narrow ring of sky around the sun is called direct solar radiation. The direct solar radiation is an important part of the total solar radiation, and the observation of direct radiation plays an important role in the climatology research of radiation flux and the evaluation of solar energy resources. Direct radiation observation, the main instrument used is the pyrheliometer. [0003] The pyrheliometer is mainly composed of an outer cylinder and an optical measuring device located in the outer cylinder for measuring direct solar radiation and coaxially distributed with the outer cylinder. An alignment hole is set in the front section of the outer cylinder, and an alignment hole is set in the rear end...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00G01J1/04
Inventor 刘石张宇张国玉苏拾张健孙高飞杨松洲盖竹秋徐达吕文华贺晓雷边泽强丁蕾崇伟孙立新闫加俊
Owner CHANGCHUN UNIV OF SCI & TECH
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