Air pressure environment stabilizing structure and inertial measuring unit of unmanned aerial vehicle

Abstract

The invention discloses an air pressure environment stabilizing structure and an inertial measuring unit of an unmanned aerial vehicle. The air pressure environment stabilizing structure comprises a shell and an air pressure measuring device fixed into the shell; a first air pore passage is formed in the shell; at least two layers of buffer media are arranged between the first air pore passage and the air pressure measuring device; a gap for air to pass is formed in each buffer medium; an air pore passage is formed between every two adjacent buffer media; the air pore passages together with the buffer media form an air passage for air outside the shell to reach the air pressure measuring device. According to the air pressure environment stabilizing structure and the inertial measuring unit of the unmanned aerial vehicle, provided by the invention, according to the principle of fluid mechanics, through arrangement of a plurality of the air pore passages with relatively small sections and the buffer media with relatively small gaps, the air passage for the air outside the shell to reach the air pressure measuring device is formed, so that the speed of the air reaching the air pressure measuring device cannot be too high and a local high-speed and low-pressure environment caused by single pore passage connection is avoided, and thus a stable working environment is provided for the air pressure measuring device of the unmanned aerial vehicle.

Description

technical field [0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle stable air pressure environment structure and an inertial measurement unit. Background technique [0002] Inside the drone is a device for measuring air pressure, usually in an inertial measurement unit. When the air pressure measurement device is used on the ground because the external environment is stable, there is no problem; however, during the use of the flight environment, due to factors such as high maneuvering speed, large altitude drop, and large wind speed interference in the flight environment, it is easy to cause the air pressure measurement device to fail. The measurement fluctuates and even seriously deviates. [0003] At the same time, for rotary-wing UAVs, the propeller will affect the surrounding air pressure environment; for fixed-wing UAVs, complex air pressure environments such as turbulence will be forme...

AI Technical Summary

Problems solved by technology

When the air pressure measurement device is used on the ground because the external environment is stable, there is no problem; however, during the use of the flight environment, due to factors such as high maneuvering speed, large altitude drop, and large wind speed interference in the flight environment, it is easy to cause the air pressure measurement devic

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