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High-resolution odor detection sensor

An odor detection and high-resolution technology, which is applied in the analysis of gas mixtures, the structure details of gas analyzers, instruments, etc., can solve the problems of single detection method, large difference in odor detection, large detection error, etc., and achieve the goal of improving odor recognition Effect

Inactive Publication Date: 2020-05-26
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Odor detection technology has applications in various fields such as medical care, safety, environment, EC (e-commerce), IOT (Internet of Things), etc. When a special gas is used for odor detection, a large detection error will occur. At the same time, the same gas is in different environments such as temperature and humidity, and the odor detection difference of the odor sensor in the prior art is also relatively large.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0019] see Figure 1-3 , a high-resolution odor detection sensor, comprising a sensor body 1, the upper end of the sensor body 1 is provided with an installation groove for installing the odor detection unit, one end of the installation groove is fixedly connected with a transverse partition 2, and the transverse partition 2 connects the installation groove A gas transition zone 3 is divided to detect the transition of gas, and a plurality of longitudinal diaphragms 4 are fixedly connected in the installation groove on one side of the diaphragm 2, the height of the diaphragm 2 is consistent with the height of the diaphragm 4 and Both are the same as the groove depth of the installation groove, and multiple mediastinum plates 4 divide the installation groove into a plurality of odor detection belts 5, and the bottom of each odor detection belt 5 is fixedly connected with a plurality of odor sensing units 6 for odor collection , the diaphragm 2 corresponding to each odor detecti...

Embodiment 2

[0022] In the present invention, a rubber sealing layer is provided between the upper end surface of the sensor body 1, the diaphragm 2 and the medial diaphragm 4, and the bottom surface of the packaging cover 10, to prevent the entry of external air and the gas interaction between each odor detection belt 5. interference.

[0023] The odor sensing unit 6 is one or more of a metal oxide semiconductor sensor, a conductive polymer sensor, a mass sensor, and an optical fiber gas sensor.

[0024] A data processing unit is arranged inside the sensor body 1, and the data processing unit is connected with the odor sensing unit 6, the temperature sensor 13, and the humidity sensor 14 through the data line, and is used to obtain the electrical characteristics obtained by interacting the odor sensing unit 6 with the detected gas. Mapping, and thus visual recognition.

[0025] The exhaust device comprises an exhaust shell 16, an exhaust fan 17, and an exhaust motor 18. The exhaust shell...

Embodiment 3

[0029] In this example, the odor sensing unit 6 in each odor detection zone 5 is a group of detection signal units, and a plurality of odor detection zones 5 can carry out multiple odor detections to the detection gas at the same time, each odor detection zone 5 The sensors used in the odor sensing unit 6 are different, and the odor sensing unit 6 of one group of detection signal units is a metal oxide semiconductor sensor, and the odor sensing unit 6 of another group of detection signal units is a conductive polymer sensor , the odor sensing unit 6 of the next group of detection signal units is set in sequence for quality sensors and the like.

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Abstract

The invention discloses a high-resolution odor detection sensor, which comprises a sensor body. A mounting groove is formed in the upper end of the sensor body; a transverse partition plate and longitudinal partition plates are fixedly connected into the mounting groove; the mounting groove is divided into a gas transition zone by the transverse partition plate; the mounting groove is divided intoa plurality of odor detection belts by the plurality of longitudinal partition plates, the bottom of each odor detection belt is fixedly connected with a plurality of odor sensing units for odor collection, an exhaust groove is formed in the side surface of the sensor body on one side of the odor detection belt, and an exhaust device is arranged on the sensor body on one side of the exhaust groove; the upper end of the sensor body is provided with a packaging cover, the packaging cover is fixedly connected with a gas collection box, and the surface of the upper end of the gas collection box is fixedly connected with a connecting pipe. The high-resolution odor detection sensor has the advantages of being high in odor detection accuracy and capable of eliminating interference factors of temperature and humidity on odor detection, and is mainly used for gas odor detection.

Description

technical field [0001] The invention relates to the technical field of odor sensors, in particular to a high-resolution odor detection sensor. Background technique [0002] Odor detection technology has applications in various fields such as medical care, safety, environment, EC (e-commerce), IOT (Internet of Things), etc. When a special gas is used for odor detection, large detection errors will occur. At the same time, the odor detection of the same gas in different environments such as temperature and humidity is also relatively large in the prior art. Contents of the invention [0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a high-resolution odor detection sensor with high accuracy of odor detection and capable of eliminating the interference factors caused by temperature and humidity to odor detection. [0004] The technical solution adopted by the present invention to achieve the above object ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0009
Inventor 熊勇刚杨小娟熊眭杨张勇米承继刘水长
Owner HUNAN UNIV OF TECH
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