Multi-channel film-type gas-sensitive material response test device
A technology of gas-sensitive materials and response testing, which is applied in the direction of measuring devices, material analysis and material analysis through electromagnetic means, can solve the problems of long sample gas desorption time, unsuitable for gas testing, low reliability, etc., to achieve convenient Capturing response signals, improving test efficiency, and ensuring stable flow and diffusion effects
Active Publication Date: 2019-04-23
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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Problems solved by technology
[0004] At present, researchers at home and abroad focus on the sensitivity and stability of gas-sensitive materials and the accuracy of test equipment. For gas response test devices, a simple single-channel test chamber is generally used, and its reliability is not high. Low precision and low test efficiency; a few test systems with multi-channel test chambers, combined with the method of static gas distribution, need to be equipped with a closed large-volume gas chamber, which makes the desorption time of the sample gas long, and is not suitable for a large number of gas tests
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[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the specific implementation manners of the present invention will be clearly and completely described below.
[0033] figure 1 and Figure 6 It is a schematic structural diagram of a multi-channel film-type gas-sensitive material response testing device provided in Embodiment 1 of the present invention. Such as figure 1 As shown, the test device includes a gas test cavity 16, a sealing ring 14, a sample cell cover plate 13 and eight pairs of metal electrode rods 11, wherein the sealing ring 14 is arranged between the gas test cavity 16 and the sample cell cover plate 13, Specifically, such as Figure 7 As shown, the shape of the sealing ring 14 is back-shaped, and the size of the sealing ring 14 is consistent with the size of the edge of the gas test chamber 16. Eight screw holes 162 are provided on the edge of the gas test chamber 16, and each of the four corners of the...
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The invention relates to the field of gas sensitive material test, and provides a multi-channel film-type gas sensitive material response test device. The device comprises a gas test chamber, a sealing ring, a sample cell cover plate and a plurality of pairs of metal electrode poles, the sealing ring is arranged between the gas test chamber and the sample cell cover plate, through holes are arranged in the sample cell cover plate, and the metal electrode bars penetrate the through holes to be fixedly connected with the sample cell cover plate. Direct insert type electrodes are adopted, current loss can be reduced, response signals are captured conveniently, and the device has high sensitivity and small measurement error.
Description
technical field [0001] The invention belongs to the field of gas-sensitive material testing, and in particular relates to a multi-channel film-type gas-sensitive material response testing device. Background technique [0002] The detection of inorganic gases is an important technical means for safety monitoring, and it is also a major technical problem. Generally, flammable and explosive dangerous goods will be accompanied by the release and adhesion of inorganic gases. Therefore, the content of inorganic gases in the air and specific environments Rapid and accurate in-situ measurements have broad application prospects, and gas sensors are a convenient way to realize real-time detection of inorganic gases. [0003] Micro-atmosphere detection technology is developing in the direction of intelligence, miniaturization and portability, and the research of gas sensor has been paid more and more attention. The research on gas-sensitive sensors is inseparable from the preparation ...
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IPC IPC(8): G01N27/00
CPCG01N27/00
Inventor 齐天骄刘晓锋王蔺王慧
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS