A Distributed Air Data System Using Multi-function Probe

Abstract

The invention discloses a distributed atmospheric data system using a multifunctional probe, which comprises a flight control computer, an atmospheric data computer, an angle of attack solver, left and right multifunctional probe sensors, and left and right L-shaped pressure sensors Components, upper and lower pressure differential attack angle sensors and sideslip angle sensors; the attack angle solver receives the pressure signals of the upper and lower pressure differential attack angle sensors for calculation; the sideslip angle sensor sends the attack angle solver and atmospheric data to the The computer provides the side slip angle signal; the attack angle solver provides the calculated atmospheric parameters to the electromechanical management computer and the backup parameter collector. The invention adopts a pair of multi-function probe sensors, which can reduce 2 pieces of equipment compared with the independent sensor scheme without reducing the system redundancy, reduce the protrusions on the surface of the body, reduce the difficulty of sensor location selection and arrangement, and improve the system integration degree, reducing the weight of the system.

Description

technical field [0001] The invention relates to a distributed air data system using a multifunctional probe. It belongs to the measurement of atmospheric parameters in the field of aviation instruments and equipment. Background technique [0002] The air data system is an extremely important system on an aircraft. It collects and provides atmospheric parameters such as airspeed, Mach number, barometric altitude, lift speed, angle of attack, and sideslip angle to the aircraft. The air data system is usually composed of sensors such as total static pressure sensor, angle of attack sensor, sideslip angle sensor and total temperature sensor, sensors and air data computer. Atmospheric data systems can be divided into centralized and distributed. The core of the centralized air data system is the air data computer, and the signals sensed by all sensors and receptors are sent to the air data computer for processing; , The sensor and the microprocessor are integrated together, and...

AI Technical Summary

Problems solved by technology

Air data sensors are basically arranged in areas where the flow field characteristics on the surface of the aircraft have little change, and the available space on the surface of the aircraft is limited, and they must be arranged separately from devices protruding from the surface of the aircraft such as antennas, which leads to a relatively large gap in the location selection of the sensors. difficulty

In order to reduce the number of air data probes protruding from the aircraft surface, a multi-functional probe sensor integrating static pressure measurement and airflow deflection angle measurement has appeared in the world, but there is no aircraft application in China at present

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