Disposal Method for Left and Right Angle of Attack Difference of Civil Aircraft Stall Protection System

The angle of attack (AOA) sensor is a special equipment for measuring the AOA of aircraft, which is widely used in various civil aviation models [1]. The AOA sensor of civil aircraft, as an important sensing equipment of stall protection system, measures the AOA of aircraft by sensing airflow. The sensor is cross-linked with stall protection computer (SPC), and the primary sensor data is processed into corrected AOA and sent to avionics system, stick shaker, pitch servo and other components through data bus. So as to realize the functions of stall protection alarm, stall push rod and automatic ignition. In this paper, the difference between left and right angles of attack of stall protection system is analyzed, and the common treatment methods are given for the difference between left and right angles of attack of civil aircraft stall protection system.