MULTIFUNCTION PRESSURE SENSOR FOR AIRCRAFT

摘要

Disclosed is an apparatus for measuring the aerodynamic parameters of an airflow around an aircraft. A streamlined body is rotatably mounted in the airflow such that it aligns itself freely with the flow. Total and static pressure pick-off apertures are provided in the body. The measurement of the true angle of incidence is obtained from two distinct measurements. A first measurement mechanically provides the orientation alpha m of the streamlined body relative to the aircraft and the other provides the aerodynamic pressure orientation alpha a of the same streamlined body relative to the airflow. The true angle of incidence alpha is then determined by summing alpha m and alpha a.