Performance testing method, device and storage medium of pressure sensor
A technology of pressure sensor and test method, applied in measuring devices, measuring fluid pressure, instruments, etc., can solve the problems of inaccurate pressure test and bad pressure chip, and achieve the effect of avoiding inaccurate pressure test and simple process logic
Active Publication Date: 2022-04-22
荣成歌尔微电子有限公司
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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
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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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The invention discloses a performance testing method, device and storage medium of a pressure sensor, wherein the performance testing method of the pressure sensor adopts the method of applying a first preset pressure value to the pressure sensor to be tested at a first preset temperature. pressure shock; acquiring performance parameters of the pressure sensor to be tested; if the performance parameters meet a preset condition, performing a pressure test on the pressure sensor to be tested at the first preset temperature to obtain a test result ; determine the performance information of the pressure sensor to be tested according to the test results, so that by applying a pressure shock of the first preset pressure value to the pressure sensor to be tested to effectively screen out bad pressure sensors, avoid As a result, the stress test is inaccurate. The logic of this test method is simple, the test speed is fast, and the production efficiency is not affected.
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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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