A kind of electrochemical sensor testing system and testing method

A test system and sensor technology, applied in the field of electrochemical sensor test systems, can solve the problems of not being able to guarantee the toxic and harmful gases of the electrochemical sensor, unable to judge the normal operation of the electrochemical sensor, etc., and achieve the effect of a wide range of applications

Active Publication Date: 2022-03-15
CHENGDU ACTION ELECTRONICS JOINT STOCK
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Problems solved by technology

[0003] In order to solve the defects that the existing technology cannot judge whether the electrochemical sensor can work normally, and cannot ensure that the electrochemical sensor can detect toxic and harmful gases in the air in time, the present invention provides an electrochemical sensor testing system and testing method

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  • A kind of electrochemical sensor testing system and testing method

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Embodiment approach

[0046] An electrochemical sensor testing system, the electrochemical sensor includes a constant voltage control circuit and a current-voltage conversion circuit, the testing system includes a zero-point voltage module and an interference voltage module; wherein,

[0047]The zero-point voltage module is respectively connected to the constant voltage control circuit and the current-voltage conversion circuit of the electrochemical sensor, and is used to provide the zero-point voltage required for the electrochemical sensor to work;

[0048] The interference voltage module is correspondingly connected to the constant voltage control circuit of the electrochemical sensor, and is used for providing an interference voltage to excite the electrochemical sensor.

[0049] In the above technical solution, the zero-point voltage module will provide the zero-point voltage required for the operation of the electrochemical sensor according to the type of the electrochemical sensor, and the z...

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Abstract

The invention discloses an electrochemical sensor testing system. The electrochemical sensor includes a constant voltage control circuit and a current-voltage conversion circuit. The testing system includes a zero-point voltage module and an interference voltage module; wherein, the zero-point voltage module is respectively connected with the The constant voltage control circuit of the electrochemical sensor and the current-voltage conversion circuit are correspondingly connected to provide the zero-point voltage required for the operation of the electrochemical sensor; the interference voltage module is correspondingly connected to the constant voltage control circuit of the electrochemical sensor, using to provide an interference voltage that excites the electrochemical sensor. The electrochemical sensor of the invention can accurately test the running state of the electrochemical sensor, which is convenient for users to know the working condition of the whole electrochemical sensor in time, and avoids dangerous situations caused by the failure of the electrochemical sensor to detect toxic and harmful gases in the air in time. ; For fault testing of biased electrochemical sensors and non-biased electrochemical sensors, it has a wide range of applications.

Description

technical field [0001] The invention relates to the technical field of electrochemical sensors, in particular to an electrochemical sensor testing system and testing method. Background technique [0002] Electrochemical sensors are part of the sensor application field, mainly used to detect poisonous and harmful gases, and are widely used in petrochemical and other dangerous places where toxic and harmful gases are easily produced. The signal processing system of the electrochemical sensor includes a constant voltage control circuit and a current-voltage conversion circuit. According to the signal processing principle of the electrochemical sensor, it can be known that in the actual application process, no current flows through the electrochemical sensor, and the signal processing output voltage of the electrochemical sensor is a fixed voltage. However, there are many situations that cause no current in the electrochemical sensor, such as: 1) the electrochemical sensor is i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 李运科
Owner CHENGDU ACTION ELECTRONICS JOINT STOCK
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