Pressure sensor leak detection test control circuit and device
A pressure sensor, test control technology, applied in the field of sensors, can solve the problems of low accuracy and low efficiency of pressure sensor leak detection and testing, and achieve the effect of improving accuracy, avoiding manual operation test actions, and eliminating manual errors
Pending Publication Date: 2021-06-08
WUHAN FINEMEMS
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[0004] The main purpose of the present invention is to propose a pressure sensor leak detection test control circuit and device, aiming to solve the technical problems of low efficiency and low accuracy of pressure sensor leak detection test in the prior art
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0033] In addition, the ...
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The invention discloses a pressure sensor leak detection test control circuit and device, and relates to the technical field of sensors. According to the technical scheme, the relay driving circuit and the electromagnetic valve driving circuit which are connected with each other are arranged to form a pressure sensor leak detection test control circuit, and the electromagnetic valve driving circuit is connected with the leak detection test tool. The relay driving circuit is used for generating a relay driving signal and transmitting the relay driving signal to the electromagnetic valve driving circuit; and the electromagnetic valve driving circuit is used for receiving the relay driving signal so as to drive an electromagnetic valve in the leak detection test tool to execute a test action. In the invention, an operator only needs to set the relay driving signal to control the leak detection test tool to test, so that manual operation test actions are avoided, and the leak detection test efficiency of the pressure sensor is improved. Meanwhile, the automatic control also avoids the influence of artificial factors, eliminates artificial errors, and improves the accuracy.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a pressure sensor leak detection test control circuit and device. Background technique [0002] After the pressure sensor is produced, it usually needs to be tested to ensure that the pressure sensor can be used normally. The test mainly includes leak detection test, etc. to check whether the tightness of the pressure sensor meets the regulations. Due to the many steps involved in the test, at present, the leak detection test of the pressure sensor is mostly completed by manual operation, which undoubtedly has a certain impact on the efficiency and accuracy of the test. Therefore, how to improve the efficiency and accuracy of the pressure sensor leak detection test is an urgent technical problem to be solved. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as...
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IPC IPC(8): G01M3/26G05B19/042F16K31/06
CPCF16K31/0675G01M3/26G05B19/042
Inventor 王小平曹万唐文向忠明
Owner WUHAN FINEMEMS