Smell detection system based on odor evaporation characteristic spectrum and system thereof

A technology of olfactory detection and characteristic spectrum, applied in the investigation stage/state change, etc., can solve the problems of poor selectivity, less information acquisition, increased data processing amount and hardware cost, etc., to achieve effective detection and improve the effect of olfactory detection ability

CN101871898AInactive Publication Date: 2010-10-27HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2010-10-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the odor detection technology, relates to the technical field of odor sample processing and smell and discloses a smell detection system based on an odor evaporation characteristic spectrum and a system thereof. The artificial smell technology has been widely applied in the field of detection of various types of odor, and the smell detection capability can be greatly improved through improving the volume of odor information obtained by a single sensor. The invention describes evaporation characteristics of a liquid sample based on the principles that the components of the liquid sample has different evaporation characteristics, and odor generated in evaporation at different time has different gas components and contents thereof during evaporation of the liquid sample of a finite volume, and a specific type of gas sensor responds to odor generated in evaporation at different time to obtain sensor signals changing along with the time, i.e. the odor evaporation characteristic spectrum. Therefore, the invention increases odor information obtained by the gas sensor, improves the accuracy of odor analysis and has great market application value in food analysis, security testing, medical treatment, public health and other aspects.
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Description

technical field

[0001] The invention belongs to an odor detection technology, relates to the fields of odor sample processing and olfactory technology, in particular to an olfactory detection method and system based on odor evaporation characteristic spectrum. Background technique

[0002] The development of modern life and industry has brought about the generation of a large number of flammable, explosive, poisonous and harmful odors, which will inevitably affect the quality of human life. In order to protect human health, as well as the safety of life and production, people have begun to detect odors in various fields, such as environmental protection, product testing, medical and health, safety inspection, aerospace and other fields. The importance of odor detection is also increasing day by day, which is the objective demand of social development.

[0003] As the application range of odor detection becomes wider and wider, convenient and effective odor detection becomes...

Examples

example

[0050] The application example is to measure and identify four different liquors: Sitejiu, Baiyunbian, Hongxing Erguotou, and Maopu Pure Grain Liquor. The sensor used in the experiment was WO prepared by template method 3 Sensor, the specific preparation process can be found in the literature [Aihua Yan, et al, Synthesis, formation mechanism and illuminated sensing properties of 3D WO 3 nanowall, Journal of Alloys and Compounds 495(2010) 88-92].