Aircraft control surface measuring device and method

Abstract

The invention provides an aircraft control surface measuring device and method. The measuring device comprises a transverse sliding rail; a longitudinal sliding rail arranged on the transverse sliding rail in a sliding manner; a first clamp which is used for clamping a control surface and is arranged on the longitudinal sliding rail in a sliding manner; a first linear displacement sensor which is arranged on the longitudinal sliding rail; and a second linear displacement sensor which is arranged on the first clamp. The measuring method based on the device comprises the following steps: S1, giving a control command to control the control surface of the aircraft to deflect upwards or downwards; S2, according to the data measured by the first linear displacement sensor, obtaining the transverse displacement X of the outer end of the control surface of the aircraft, and according to the data measured by the second linear displacement sensor, obtaining the longitudinal displacement Y of the outer end of the control surface of the aircraft; and S3, obtaining the deflection angle A = 2arctan (X / Y) of the control surface of the aircraft according to the triangle principle. According to the invention, the safety is greatly improved, the operation is simpler, the measurement precision is high, and field calibration is not needed.

Description

technical field [0001] The invention relates to the technical field of angle measurement, in particular to an aircraft rudder surface measurement device and a measurement method. Background technique [0002] The aircraft contains many rudder surfaces, such as horizontal tail, ailerons, flaps, front wings, etc. The rudder surface is the control surface of the aircraft. During the flight, it is necessary to continuously adjust the deflection angle of the rudder surface of the aircraft to control the attitude and flight trajectory of the aircraft; For accurate debugging and measurement of angle and stroke, it is also necessary to debug and measure the deflection angle of each corresponding rudder surface. If the working angle of the deflection rudder surface is not within the specified value range, the corresponding adjustment mechanism needs to be readjusted to meet the requirements. value. [0003] The traditional rudder surface measurement usually adopts the chord length ...

AI Technical Summary

Problems solved by technology

[0003] The traditional rudder surface measurement usually adopts the chord length method or the heavy hammer method; among them, the chord length method has a complicated calibration process, large positioning reference error, low calibration accuracy, and the staff have to work at high altitude for a long time, which is very unsafe ; The heavy hammer method, its calibration process is also more complicated, the calibration accuracy is not high, and it also needs to work at high altitude, which is not safe

[0004] In view of this, some new methods have emerged to measure the aircraft rudder surface. For example, the patent with the publication number "CN112729221A" discloses a method for measuring the deflection angle of the aircraft rudder surface. University of Technology, the author He Sen, also disclosed a measurement method for aircraft rudder surfaces in his master's degree thesis titled "Research on Calibration Technology of Aircraft Elevator, Aileron and Flap Rotation Angle". However, this method is more complicated and requires the establishment of an analytical calculation model

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