Rotary attack angle weather vane structure

Abstract

The invention belongs to airborne atmospheric data probing technologies, and particularly relates to a rotary attack angle weather vane structure. The rotary weather vane is composed of a weather vaneshell, MCH metal ceramic heaters, a central clamping block, a weather vane cover and the like. The weather vane shell is a hollow shell, the MCH metal ceramic heaters and the central clamping block are installed in the middle of the weather vane shell, the two heaters are designed according to the shape of the inner wall of the weather vane shell and can tightly fit the inner wall of the weathervane, and the power of the heaters is designed according to the anti-icing and deicing conditions of an attack angle sensor. An aluminum alloy 3D printing technology is adopted for printing the wind vane shell, the profile symmetry is good, the heaters are tightly attached to the inner wall of the weather vane, heat generated by the heaters can be rapidly transmitted to the surface of the weathervane, the requirements of the attack angle sensor for anti-icing and deicing functions can be better met, the heating efficiency is high, and the problems of poor profile symmetry, low heating efficiency, non-ideal anti-icing and deicing effect and the like in existing attack angle sensor weather vane can be effectively solved.

Description

technical field [0001] The invention belongs to airborne atmospheric data detection technology, and in particular relates to a structural design of a rotating angle-of-attack wind vane. The wind vane is installed on an angle-of-attack sensor and is used for measuring the local angle of attack of an aircraft during flight. Background technique [0002] With the development of aviation airborne atmospheric data detection technology, the requirements for the measurement and control of aircraft flight attitude are getting higher and higher. Accurate angle of attack measurement is a necessary condition for completing this task. As the aerodynamic sensing part of the angle of attack sensor, the wind vane is an important part of the angle of attack sensor. Its aerodynamic performance and anti-icing and deicing functions directly affect the measurement accuracy of the angle of attack. Existing weather vane production technology generally adopts mechanical forming and manual welding ...

AI Technical Summary

Problems solved by technology

Existing weather vane production technology generally adopts mechanical forming and manual welding processes. The produced weather vanes have problems such as poor shape consistency, poor symmetry, and unsatisfactory anti-icing and de-icing effects. demand, the current product cannot meet the requirements for use

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