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Data calibration method and device for air pressure sensor

A technology of air pressure sensor and calibration method, which is applied in the field of sensors, can solve problems such as large error in measurement results, affect user experience, and low measurement accuracy in local areas, and achieve the effect of improving accuracy

Active Publication Date: 2019-05-21
WEIFANG GOERTEK MICROELECTRONICS CO LTD
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  • Claims
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Problems solved by technology

[0003] Existing air pressure sensors usually use one-time calibration for precision calibration during measurement. In the case of large changes in ambient temperature, using the existing calibration method will lead to low measurement accuracy in local areas, resulting in large error in measurement results. Large, affecting user experience

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  • Data calibration method and device for air pressure sensor
  • Data calibration method and device for air pressure sensor
  • Data calibration method and device for air pressure sensor

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Embodiment Construction

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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 a data calibration method and device for an air pressure sensor. The method comprises the following steps: carrying out primary fitting calculation on nonlinear original data according to a first preset calibration coefficient to obtain primary calibration data; performing secondary fitting calculation on the primary calibration data according to a second preset calibrationcoefficient to obtain secondary calibration data; determining the secondary calibration data as to-be-output air pressure data; and outputting the to-be-output air pressure data. According to the invention, the data precision of the air pressure sensor can be improved.

Description

technical field [0001] The present disclosure relates to the technical field of sensors, and more specifically, to a data calibration method and device for an air pressure sensor. Background technique [0002] The air pressure sensor is mainly used to measure the pressure of the gas. The air pressure sensor is usually used to measure the air pressure, measure the change of the weather, and use the corresponding relationship between the air pressure and the altitude to measure the altitude and so on. [0003] Existing air pressure sensors usually use one-time calibration for precision calibration during measurement. In the case of large changes in ambient temperature, using the existing calibration method will lead to low measurement accuracy in local areas, resulting in large error in measurement results. Large, affecting the user experience. [0004] Therefore, the inventor believes that it is necessary to improve at least one of the above problems. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
Inventor 端木鲁玉方华斌付博张硕
Owner WEIFANG GOERTEK MICROELECTRONICS CO LTD
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