Control surface deflection control and measurement system and method

Abstract

The invention discloses a control surface deflection control and measurement system and method. The system comprises an upper computer and at least one control surface deflection angle measuring device, the device comprises a fixed part, a gravity swing part, a rotating shaft, a rotating potentiometer and a processor unit, and the fixed part is arranged at the rear edge of a horizontally-arranged target control surface and is hinged to the gravity swing part through the rotating shaft; the upper computer realizes deflection control of a target control surface based on the flight control machine and the steering engine, and the steering engine sends a position feedback signal to the upper computer based on the flight control machine; the rotating potentiometer converts the rotating angle of the rotating shaft into a voltage signal when the upper computer completes one-time deflection control operation on the target control surface and the gravity swing part restores to be static; the processor unit obtains the actual deflection angle of the target control surface based on the voltage signal and uploads the actual deflection angle to the upper computer. According to the invention, the problem that the existing large unmanned aerial vehicle or manned vehicle horizontally placed control surface deflection angle measurement mode is insufficient in precision and complex in implementation and needs to be completed by multiple persons can be solved.

Description

technical field [0001] The invention belongs to the field of rudder surface angle measurement and calibration, and more specifically relates to a rudder surface deflection control and measurement system and method. Background technique [0002] As one of the important links in the field of flight control, the measurement and calibration of rudder deflection angle is directly related to the deviation between the actual deflection of the rudder surface and the command angle, which will have a direct impact on the flight performance of the aircraft, resulting in reduced control accuracy and even flight safety. question. Generally, the deflection angle of the rudder surface can be reflected from the angle measurement sensor of the steering gear, but in most cases, the steering gear and the rudder surface are connected mechanically by connecting rods, gears, etc. It is difficult for the feedback angle to truly reflect the actual angular deflection of the rudder surface, so the m...

AI Technical Summary

Problems solved by technology

There are two main forms of mechanical type, one is the use of gravity, when the rudder surface is deflected, the moving parts are always facing down due to gravity, and the difference in the angle of change is the actual deflection angle of the rudder surface; the other is the distance measurement type, which measures the rudder surface The distance change of the marking point on the trailing edge is used to calculate the actual deflection angle of the rudder surface when the radius of rotation of the rudder surface is known; these test methods are relatively simple, but the measurement accuracy is insufficient, and personnel are required to assist in reading and calculation, and the efficiency is low

The electronic type uses modern electrical and electronic equipment for measurement. One uses high-precision angle measuring instruments to measure angles; , at the same time, it has some disadvantages such as certain operating requirements for users

[0004] The calibration of the rudder surface involves the process of sending the steering gear command from the airborne flight controller, reading and recording the actual angle of the rudder surface, etc. For large UAVs, the large size of the wingspan makes the position of the rudder surface far away from the airborne equipment, resulting in command Sending and reading the rudder surface angle often require different personnel to carry out separately, which greatly reduces the efficiency of rudder surface calibration and testing

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