Dual-view optical path device for smooth wall wind tunnel

A dual-angle, cave wall technology, applied to measuring devices, instruments, aerodynamic tests, etc., can solve problems such as installation and layout, and achieve the effects of small calculation, convenient and fast adjustment, and simple algorithm

Active Publication Date: 2017-06-13
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Application Information

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Problems solved by technology

The multi-optical high-speed camera method is used in the wind tunnel model launch test, which has the characteristics of high flexibility, non-contact, and high precision. However, how to install and arrange multiple high-speed camera equipment in the smooth wall wind tunnel is a difficult problem in the test technology

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  • Dual-view optical path device for smooth wall wind tunnel
  • Dual-view optical path device for smooth wall wind tunnel

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] see figure 1 and figure 2 , an embodiment of the present invention provides a dual-view optical path device for a smooth tunnel wall wind tunnel, which includes: a side-view optical path unit and an upward-view optical path unit, and the side-view optical path unit is arranged at the side observation window of the test section of the smooth tunnel wall wind tunnel , used to generate a side-looking ray path to directly image a model placed in a smooth-walled wind tunnel. The upward-looking optical path unit is arranged in the lower chamber of the test section of the smooth-walled wind tunnel, and is used to generate an upward-looking optical path to image directly below the model placed in the smooth-walled wind tunnel. Prefer...

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Abstract

The invention discloses a dual-visual-angle light path device used for a wind tunnel with a smooth tunnel wall. The dual-visual-angle light path device comprises a side-view light path unit and a look-up light path unit, wherein the side-view light path unit is arranged at a side observation window of the testing segment of the wind tunnel with the smooth tunnel wall and used for producing a side-view light path so that the side-view light path can be over against a model placed in the wind tunnel with the smooth tunnel wall for imaging; the look-up light path unit is arranged in a lower plenum chamber of the testing segment of the wind tunnel with the smooth tunnel wall and used for producing a look-up light path so that the position under the model placed in the wind tunnel with the smooth tunnel wall can be imaged. According to the technical scheme, the limit by space and installation conditions is overcome, the technical problems that multiple existing high-speed cameras cannot be installed on a wind tunnel, and a camera shooting light patch cannot be arranged are solved, and a technical means is provided for multi-visual-angle camera shooting and measurement technology in a model placement test.

Description

technical field [0001] The invention relates to a dual-view optical path device for a smooth tunnel wall wind tunnel, in particular to a dual viewing angle optical path device that can be applied to a model drop test in a smooth tunnel wall wind tunnel. Background technique [0002] At present, there are many technical means for model attitude measurement in wind tunnels, but there are very few mature technologies for small fast-moving objects, especially for model attitude measurement in scale model drop tests in wind tunnels. It is mainly due to the special environment of the wind tunnel test, the small shape of the tested object, and most of them are rotating bodies, and the fast moving speed of the tested object during the test. The existing inertial measurement equipment, laser tracking measurement equipment, etc. must be equipped with devices on the model, which destroys the inherent characteristics of the model. Other known measurement methods also have problems such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04G01M9/06
Inventor 杨益农杨建军赵玲薛飞季辰蔡广平
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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