Distributed atmosphere data system

Abstract

The invention discloses a distributed air data system, which includes left and right multifunctional probe sensors, left and right L-shaped pressure sensor components, up and down angle of attack sensors, sideslip angle sensors and a total temperature sensor; , the right multi-function probe sensor provides a set of total, static pressure and local angle of attack signals to the left and right L-shaped pressure sensor components, and provides dynamic and static pressure signals in the form of analog quantities and two sets of angle of attack to the flight control computer signal, the left and right multi-function probe sensors receive the slip angle signals from the left and right L-shaped pressure sensor components for parameter correction; the left and right L-shaped pressure sensor components receive the slip angle signals from the upper and lower angle-of-attack sensors Calculate the angle of attack from the pressure signal, collect the side-slip angle signal from the side-slip angle sensor, calculate various atmospheric parameters through voting and correction, and provide them to the airborne transponder, inertial navigation system, electromechanical management computer and Flight parameter collector. Compared with the independent sensor solution, the present invention can reduce two pieces of equipment, improve the system integration degree, and reduce the total amount of the system.

Description

technical field [0001] The invention relates to a distributed air data system in the field of aviation instruments and equipment, in particular to a distributed air data system using a multifunctional probe. 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 one devic...

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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