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Pressure sensor performance test method and device and storage medium

A technology of pressure sensor and test method, which is applied in the direction of measuring device, measuring fluid pressure, instrument, etc., can solve the problems of inaccurate pressure test and bad pressure chip, etc.

Active Publication Date: 2020-09-18
荣成歌尔微电子有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a performance testing method, device and storage medium of a pressure sensor, which solves the problem of inaccurate pressure testing due to the failure of the pressure chip of the pressure sensor

Method used

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  • Pressure sensor performance test method and device and storage medium
  • Pressure sensor performance test method and device and storage medium
  • Pressure sensor performance test method and device and storage medium

Examples

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no. 1 example

[0077] refer to figure 2 , figure 2 It is the first embodiment of the performance testing method of the pressure sensor of the present invention, the performance testing method of the pressure sensor includes the following steps:

[0078] S10. At a first preset temperature, apply a pressure shock of a first preset pressure value to the pressure sensor to be tested;

[0079] S20. Acquiring performance parameters of the pressure sensor to be tested;

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Abstract

The invention discloses a pressure sensor performance test method and device, and a storage medium, and the method comprises the steps: applying a pressure impact of a first preset pressure value to ato-be-tested pressure sensor at a first preset temperature; acquiring performance parameters of the to-be-tested pressure sensor; if the performance parameter meets a preset condition, performing a pressure test on the to-be-tested pressure sensor at the first preset temperature to obtain a test result; determining performance information of the to-be-tested pressure sensor according to the testresult, thus, the pressure impact of the first preset pressure value is applied to the to-be-tested pressure sensor so as to effectively screen out the bad pressure sensor, inaccurate pressure test caused by the bad pressure sensor is avoided, and the test method is simple in process logic, high in test speed and free of influence on production efficiency.

Description

technical field [0001] The invention relates to the technical field of pressure sensors, in particular to a performance testing method, device and storage medium of a pressure sensor. Background technique [0002] With the advancement of technology, waterproof air pressure sensors are widely used in smart wearable devices such as mobile phones and drones. [0003] But now the pressure sensor only adopts single-point air pressure test. In the production process, it is found that due to the difference in the performance of the pressure sensor, when the pressure sensor undergoes a step-up and down step, the pressure value of the same pressure point test has a large deviation. If the defective product After the outflow, it will lead to inaccurate air pressure test of terminal products such as drones and mobile phones, which will affect customer use; and at this stage, the pressure sensor supplier has not tested and screened this bad sensor. Contents of the invention [0004] ...

Claims

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Application Information

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IPC IPC(8): G01L27/00
CPCG01L27/00
Inventor 姜琳琳孙振国
Owner 荣成歌尔微电子有限公司
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