Three-dimensional model attitude angle video measuring system for wind tunnel model test

A technology of model test and three-dimensional model, which is applied in measurement devices, aerodynamic tests, and optical devices, etc., can solve the problems of lack of real-time performance and inability to measure the sideslip angle of the model, and achieve the effect of improving the signal-to-noise ratio.
CN101699237AInactive Publication Date: 2010-04-28中国航空工业空气动力研究院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中国航空工业空气动力研究院
Publication Date
2010-04-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a three-dimensional model attitude angle video measuring system for a wind tunnel model test, in particular to a three-dimensional model attitude angle video measuring system for wind tunnel model three freedom degrees. For increasing the precision of wind tunnel model angle real-time measurement, the three-dimensional model attitude angle video measuring system overcomes the common problems of systems that the prior device has single-angle measuring ability, can not measure a side slip angle of a model, has no real-time performance, and needs postprocessing and the like. The three-dimensional model attitude angle video measuring system is composed of digital cameras, a zoom lens, a zoom lens controller, a driving lightening marking point, a high-speed computer and collection controlling and measuring software, wherein the driving lightening marking point (4) is arranged on the model, the two digital cameras (6) are used for recording, collecting and measuring in real time, the zoom lens controller (2) is connected with the high-speed computer (3) and is used for controlling the zoom lens (1), collecting images and transmitting the images to the high-speed computer (3), and the image data is processed by the collection controlling and measuring software (5) to measure and process the device in real time so as to obtain the real three-dimensional attitude angle of the model.
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Description

1. Technical field

[0001] The invention relates to a three-dimensional model attitude angle video measurement system for wind tunnel model tests, in particular to a three-dimensional model attitude angle video measurement system for wind tunnel model three-degree-of-freedom. 2. Background technology

[0002] In order to improve the accuracy of real-time measurement of wind tunnel model angles, wind tunnel workers and research institutions at home and abroad have developed various angle measurement systems. The development history of wind tunnel model angle real-time measurement technology is inseparable from the requirement of angle measurement error in wind tunnel test, which is the result of the development of science and technology. It has been decades since the first-generation acceleration angle-of-attack sensor developed in the late 1940s to the current video measurement model attitude angle. A variety of angle measurement methods have been developed. So far, the deve...

Claims

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