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Environmental atmospheric pressure profile accurate measurement method based on interquartile MEMS air pressure sensor array

A technology of air pressure sensor and atmospheric pressure, which is applied in the direction of measuring device, measuring fluid pressure, measuring fluid pressure through electromagnetic components, etc., can solve the problem of dynamic pressure reducing measurement accuracy, etc., and achieve good processing, simple mechanical structure, and good impact resistance. Effect

Inactive Publication Date: 2014-01-15
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0004] Aiming at the problem that the dynamic pressure reduces the measurement accuracy caused by the relative motion between the measuring equipment and the atmosphere during the measurement process of the atmospheric pressure corridor map, the present invention proposes a measurement method based on a quartile MEMS air pressure sensor array

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  • Environmental atmospheric pressure profile accurate measurement method based on interquartile MEMS air pressure sensor array
  • Environmental atmospheric pressure profile accurate measurement method based on interquartile MEMS air pressure sensor array
  • Environmental atmospheric pressure profile accurate measurement method based on interquartile MEMS air pressure sensor array

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Embodiment Construction

[0018] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] like figure 1 As shown, the measuring device (1) of the present invention mainly consists of three modules, including a control machine data processing module (3), a storage module (5), and an air pressure sensor array (4). Among them, the control and data processing module (3) adopts C8051F120. The main work of this module is to control the work of the air pressure sensor array, collect the data measured by the air pressure sensor, and store the collected data into the memory chip. During data processing, the control and data processing module reads data from the memory chip, and processes it according to an optimization algorithm to obtain measured values. The memory chip module (5) adopts F25H20, and its storage capacity is 2M, which can store about 500,000 groups of air pressure data. When the sensor array collects d...

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Abstract

The invention provides an environmental atmospheric pressure profile accurate measurement method based on an interquartile MEMS air pressure sensor array. When an environmental atmospheric pressure profile is measured, detection equipment needs to fall onto the ground from high altitude at a certain speed, meanwhile wind exists, and a measuring error can be caused because that the detection equipment needs to fall onto the ground from high altitude at the certain speed and wind exists. The air pressure sensor array is arranged on a cylinder and combined with a software algorithm to reduce the measuring error. An MEMS sensor is adopted and can be fused with the equipment wall to be designed, meanwhile different software algorithms can be adopted according to different measuring environments, and the method has extremely high flexibility.

Description

Technical field: [0001] Atmospheric parameter detection, mainly used for dropsondes, aircraft, etc. Background technique: [0002] In order to measure the atmospheric pressure corridor map, it is necessary to release a device from a high altitude, and use the assistance of a parachute to let it fall at a certain speed. During the fall, the atmospheric pressure value is collected, stored on the device or sent back to the ground base station. The static atmospheric pressure value is required to draw the atmospheric pressure corridor map, and the measuring equipment used in this measurement method has a certain relative motion with the atmosphere. The relative motion of the measuring device and the atmosphere is formed by two factors, one is the wind in the atmospheric environment, and the other is the falling motion of the measuring device. Moreover, these two factors cannot be avoided in actual measurement. The dynamic pressure caused by the relative motion between the meas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/00
Inventor 娄文忠洪荣森郭明儒丁旭冉王瑛刘艳坤
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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