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Research on Measurement Method of Rotational Angle of Plane Rudder Based on ADXL345 Sensor

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Abstract:

A measurement method based on digital MEMS’ acceleration sensor is proposed. The paper analyzes the working principle of capacitive acceleration sensor. According to the coordinate space transformation theory, a mathematical model of the measurement method was built, and the mathematical expressions of the angle displacement of aircraft rudder was deduced; A measurement system of aircraft tail wing inclined was established using MEMS’ acceleration ADXL345, and taken STM32 as controller. Setting different angles in 3D turntable and aiming at a typical inclination angles, the aircraft tail rotation angle experiment was simulated, and experiment achieved angle measurement arranging from-90°-90°. Experiment results demonstrate that when the inclination is close to the real inclination of aircraft tail wing, the maximum error is 0.277°, less than 0.3°, which meets the requirement of measurement. For aircraft currently being used, the measurement method can achieve the angle measurement of aircraft tail wing rotating effectively.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

3124-3128

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.3124

Citation:

Cite this paper

Online since:

May 2014

Authors:

Quan Fa Yang*, Gui Rong Ye, Chang You Li

Keywords:

Acceleration Sensor, MEMS Sensor, Microcontroller, Rudder Angle Measurement

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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