A portable device for liquor identification based on electronic nose technology

Abstract

The invention relates to portable liquor identification equipment based on the electronic nose technology. The portable liquor identification equipment mainly comprises an air pump, an evaporation chamber, a reaction chamber, a microprocessor and solenoid valves, wherein the air pump is used for pumping sample air in the evaporation chamber into the reaction chamber; the air pump is connected with the air inlet of the evaporation chamber through the first solenoid valve and connected with the reaction chamber through the third solenoid valve; the evaporation chamber is a transversely placed cylindrical chamber, an air inlet and an air outlet are formed in two sides of the cylindrical chamber, and a top opening of the cylindrical chamber is used for adding a liquor sample; a heating belt is wound on the outer wall of the evaporation chamber; the top and the bottom of the reaction chamber are shaped like a slightly raised cone, and an air inlet and an air outlet are formed in the top and the bottom of the reaction chamber respectively; signals collected by an air sensor are sent to the microprocessor to be used for identifying liquor. The equipment provided by the invention is convenient to carry and suitable for on-site and outdoor identification of liquor.

Description

[0001] Technical field [0002] The invention relates to an electronic nose technology for liquor identification, which is a portable device capable of identifying and memorizing liquor without a computer. Background technique [0003] With the improvement of living standards, people pay more and more attention to the quality of wine and food. As far as liquor is concerned, there are many kinds of liquor, which can be classified according to aroma type and craft. Currently, there are methods such as sensory identification and chromatography for the identification of liquor. Sensory identification is mainly based on color, aroma, taste, etc., but this method is somewhat subjective and is generally limited to professionals in the industry. Using chromatographic method to identify has to face the complex components of liquor, including organic acids, esters, alcohols and other components, which are difficult to completely separate even with chromatographic columns. At the same ...

AI Technical Summary

Problems solved by technology

The main differences between this patent and this patent include: 1) It is a handheld device for gas detection, which cannot be used for the identification of liquor and other liquids; 2) The device does not have an evaporation chamber for storing liquids, but directly from The gas to be measured is inhaled into the reaction chamber of the sensor array in the air, and the concentration of the gas to be measured cannot be controlled. There is a hidden danger of gas sensor poisoning, and the concentration also becomes an interference factor in the sampling process; A component that performs constant temperature control on the reaction between the gas and the sensor, which brings the interference factor of temperature to the reaction between the sensor and the gas to be measured during the sampling process

Images