Distributed air data system by adopting multifunctional probe

Abstract

The invention discloses a distributed air data system by adopting a multifunctional probe, which comprises a flight control computer, an air data computer, an attack angle solver, a left multifunctional probe sensor, a right multifunctional probe, a left L-shaped pressure receptor assembly, a right L-shaped pressure receptor assembly, an upper pressure difference attack angle sensor, a lower pressure difference attack angle sensor and a sideslip angle sensor, wherein the attack angle solver receives pressure signals of the upper pressure difference attack angle sensor and the lower pressure difference attack angle sensor for solution; the sideslip angle sensor is used for providing sideslip angle signals for the attack angle solver and the air data computer; and the attack angle solver provides the solved air parameters to an electromechanical management computer and a backup parameter collector. According to the multifunctional probe sensor adopted by the invention, in the condition of not reducing system redundancy, two pieces of equipment can be reduced compared with an independent sensor scheme, projections on the surface of the body can be reduced, the difficulty that sensors select positions for arrangement can be reduced, system integration is improved, and the system weight is reduced.

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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