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PCA-based gas detection apparatus and PCA-based gas detection method

A technology of gas detection and standard gas, which is applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of increasing the cost of sensor preparation, increasing the sensor manufacturing process, increasing the total volume of the sensor, etc., and achieves simple structure and graphic Concise, volume-reducing effect

Inactive Publication Date: 2018-01-19
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this sensor array has many sensitive units, which not only increases the manufacturing process of the sensor, but also increases the total volume of the sensor, which increases the manufacturing cost of the sensor.

Method used

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  • PCA-based gas detection apparatus and PCA-based gas detection method
  • PCA-based gas detection apparatus and PCA-based gas detection method
  • PCA-based gas detection apparatus and PCA-based gas detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0032] Such as figure 1 As shown, the gas detection device in Examples 1-6 includes a zirconium-based sensor, a data collection conversion device and a PCA analysis module.

[0033] The zirconium-based sensor includes a zirconium-based solid electrolyte base layer 1, a reference electrode 2 and a sensitive electrode 3 arranged on the zirconium-based solid electrolyte base layer, and a heating device 6 arranged below the zirconium-based solid electrolyte base layer;

[0034] Zirconium-based solid electrolyte base layer 1 is formed by sintering yttrium-stabilized zirconia green ceramic sheets with a thickness of 0.3-1 mm;

[0035] The reference electrode is dense manganese oxide. The preparation process is to dissolve the manganese oxide powder into the polymer chemical reagent to prepare the manganese oxide electrode slurry, which is printed on the surface of the zirconium-based solid electrolyte matrix 1 by screen printing technology. ;

[0036] The sensitive electrode is a ...

Embodiment 7

[0042] Such as figure 2 As shown, in the present embodiment, the gas detection method based on PCA comprises the following steps,

[0043] (1), pass the standard gas of known concentration into the zirconium-based sensor described in embodiment 1, adjust the working temperature of the zirconium-based sensor by the heater 6 and keep it, and detect the difference between the zirconium-based sensor and the standard at different working temperatures The response value of the gas, such as image 3Shown is the response value of the standard gas with a concentration of 400ppm at different working temperatures; then change the concentration of the standard gas, and check the response value of the zirconium-based sensor to the standard gas at different working temperatures again; repeat this many times to obtain the standard gas at different working temperatures Multiple response values ​​at different concentrations and different working temperatures, these response values ​​can form...

Embodiment 8

[0047] The difference between this embodiment and Embodiment 7 is that the zirconium-based sensor in Embodiment 2 is used.

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Abstract

The present invention relates to a PCA-based gas detection apparatus and a PCA-based gas detection method, and belongs to the technical field of gas detection. The gas detection apparatus comprises azirconium-based sensor, a data collection and conversion device and a PCA analysis module, wherein the zirconium-based sensor has a single sensitive electrode. According to the present invention, thegas detection apparatus can simultaneously identify a plurality of gases, and has advantages of simple preparation process, small volume, and low cost.

Description

technical field [0001] The invention belongs to the technical field of gas detection, and relates to a PCA-based gas detection device and method. Background technique [0002] With the development of the economy and the progress of society, various industrial production and human activities have increased significantly, producing a large amount of harmful gases, such as hydrocarbons, carbon oxides, nitrogen oxides, etc. These gases can also be transformed into secondary pollutants under certain conditions, leading to the generation of photochemical smog. Long-term exposure to these gases can cause damage and canceration of human organs and nervous system. Therefore, it is very necessary to develop a sensor that can monitor harmful gases in real time. [0003] There are many kinds of harmful gases in the environment. It is necessary to monitor this multi-component gas in real time, and at the same time eliminate the interference between gases. The concentration measurement ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/406G01N27/407G01N27/417
Inventor 简家文李福安金涵邹杰张鑫章东兴
Owner NINGBO UNIV
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