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A plug-in electrochemical gas sensor module and its packaging method

A gas sensor and sensor module technology, applied in scientific instruments, instruments, measuring devices, etc., can solve the problems of thick module size, difficult to implant miniaturized equipment, limited application scope of gas sensors, etc., to achieve easy disassembly and replacement, It has the effect of maintainability and saving packaging space

Active Publication Date: 2022-05-17
广州钰芯传感科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gas sensor is installed on the signal processing amplifier circuit board through the connector, but the size of the assembled module is too thick to be implanted in the miniaturized device, which limits the application range of the gas sensor

Method used

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  • A plug-in electrochemical gas sensor module and its packaging method
  • A plug-in electrochemical gas sensor module and its packaging method
  • A plug-in electrochemical gas sensor module and its packaging method

Examples

Experimental program
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Embodiment 1

[0038] The package of the plug-in electrochemical gas sensor module:

[0039] Reference attached Figure 4 As shown, an implementation manner of the plug-in electrochemical gas sensor module of the present invention is illustrated, including: an electrode plate, a gas filter screen, a module circuit board, a signal processing and amplifying circuit, and a conductive contact piece.

[0040] like figure 2 As shown, the sensor electrode plate is made of aluminum nitride ceramic material, and the back is a coplanar integrated electrode including a first electrode, a second electrode, and a third electrode, wherein the first electrode (working electrode) and the second electrode (counter electrode) are The shape of the interdigitated electrode, the third electrode is the reference electrode; the shape of the interdigitated electrode of the first electrode and the second electrode on the front side of the electrode is consistent with the pattern on the back side.

[0041] The sen...

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PUM

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Abstract

The invention relates to a plug-in type electrochemical gas sensor module and a packaging method thereof, comprising: an electrode plate, a module circuit board, a signal processing amplifying circuit, and a conductive contact piece. Micro-pitch electrodes are installed on the front and back of the electrode plate, and are packaged on the same module circuit board as the signal processing amplifier circuit. The area where the electrode plate is placed in the module circuit board is hollowed out to form an air cavity; the back of the electrode plate faces down. The gas to be measured enters the air cavity through the back of the module circuit board, and reaches the back of the electrode plate through the gas filter; the electrode plate has a large number of penetrating vent holes in the electrolyte area, and the gas to be measured reaches the electrode on the back of the electrode plate through the vent holes; The signal processing amplifier circuit on the module circuit board transmits the detected electrical signal to the detection equipment for processing, storage, display, etc., to realize the detection of gas, greatly shorten the distance between the sensor chip and the amplifier circuit, and reduce signal loss. Greatly improved sensor accuracy.

Description

technical field [0001] The invention relates to the field of electrochemical sensors, in particular to a card-type electrochemical sensor. Background technique [0002] Gas sensors are generally widely used in petrochemical, industrial production, biomedical, aviation and home life and other fields. With the development of Internet of Things technology, the application requirements of gas sensors are also increasing. In recent years, gas sensors based on electrochemical technology have been rapidly developed and widely used. [0003] The basic elements of a typical electrochemical sensor are: a working (or sensing) electrode, a counter electrode, and usually a reference electrode. The electrodes described above are attached to the sensor and are lined with electrolyte. The electrodes are located on the inner face of a diffusion membrane, which has a porous structure for the substance to be detected to pass through, but is impermeable to the electrolyte. After the substan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/407
CPCG01N27/4075
Inventor 叶耀斌奚亚男
Owner 广州钰芯传感科技有限公司
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