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Air pressure sensor protection structure, air pressure gauge and unmanned aerial vehicle (UAV)

A technology of air pressure sensor and protective structure, which is applied in the direction of instruments, measuring fluid pressure, measuring devices, etc., can solve problems such as the decrease of measurement accuracy of air pressure sensors, and achieve the effect of reducing interference and ensuring measurement accuracy.

Pending Publication Date: 2018-05-15
GOERTEK ROBTICS CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

When the altitude of the UAV changes, a strong or large airflow quickly injects into the position where the air pressure sensor is located, resulting in a decrease in the measurement accuracy of the air pressure sensor

Method used

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  • Air pressure sensor protection structure, air pressure gauge and unmanned aerial vehicle (UAV)
  • Air pressure sensor protection structure, air pressure gauge and unmanned aerial vehicle (UAV)
  • Air pressure sensor protection structure, air pressure gauge and unmanned aerial vehicle (UAV)

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Embodiment Construction

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0038] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0039] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0040] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses an air pressure sensor protection structure, an air pressure gauge and an unmanned aerial vehicle (UAV). The air pressure sensor protection structure comprises a protective cover and a slow flow medium; the protective cover comprises a cover body and a plurality of spacer plates; the cover body is provided with at least two air inlet holes and is internally provided with acavity; the spacer plates are fixedly connected with the cover body; a cavity is divided into a pressure measuring cavity and a plurality of slow flow cavities by means of the spacer plates; the spacer plates are separately provided with an air flow channel. By means of the interaction between air flows entering the protective cover through the different air inlet holes and the multi-stage slow flow action of the slow flow cavity and the slow flow medium, the interference of the air flow changes on an air pressure sensor can be effectively reduced, so that the measurement accuracy of the air pressure sensor can be ensured.

Description

technical field [0001] The invention relates to the field of barometers, and more specifically, to a protective structure for an air pressure sensor, a barometer and an unmanned aerial vehicle. Background technique [0002] With the rapid development of intelligent electronic devices, people put forward higher and higher demands on the functions of intelligent electronic devices. Barometric pressure sensors measure atmospheric pressure and are therefore also widely used. The pressure measured by the air pressure sensor is static pressure, and the static pressure is easily affected by the change of air flow. When a strong or large air flow is injected into the position of the air pressure sensor, the measured value of the air pressure sensor will have a large error. [0003] Taking UAVs as an example, UAVs usually realize the function of height determination through chips integrated with air pressure sensors and acceleration sensors. When the altitude of the UAV changes, st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/06G01L19/14
CPCG01L19/0609G01L19/141
Inventor 李印波卜凡利王大伟夏旭
Owner GOERTEK ROBTICS CO LTD
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