A portable tea aroma detection electronic nose system and its detection method

Abstract

The invention discloses a portable tea fragrance detection electronic nose system and a detection method thereof. The portable tea fragrance detection electronic nose system comprises a box body, a fragrance detection assembly, a signal collection circuit board card, a battery, multiple switches, a suction probe and a tablet PC (Personal Computer), wherein the fragrance detection assembly, the signal collection circuit board card and the battery which is used for supplying power are arranged in the box body; the multiple switches, the suction probe and the tablet PC are arranged on the box body; the signal collection circuit board card is respectively connected with the fragrance detection assembly, the multiple switches and the tablet PC; the suction probe is used as a fragrance input end of tea leaves and is connected with the fragrance detection assembly; the fragrance detection assembly is connected with the input end of the signal collection circuit board card; the output end of the signal collection circuit board card is connected with the tablet PC through a communication circuit; the signal collection circuit board card is also connected with a collection card driving circuit. The portable tea fragrance detection electronic nose system disclosed by the invention is suitable for facing the mode of evaluating the grade and the quality of the tea leaves through collecting the fragrance of the tea leaves and is small in size, compact in structure and convenient to carry, instable influence of manual evaluation is remarkably reduced, and the accuracy and the repeatability of evaluation results are increased.

Description

technical field [0001] The invention relates to the field of designing an electronic nose, and in particular relates to a portable tea aroma detection electronic nose system and a detection method thereof. The electronic nose of the invention can be used to collect tea aroma to identify the type and quality of tea. Background technique [0002] As one of the important factors for evaluating tea types and grades, tea aroma is generally carried out through human sensory evaluation. However, the accuracy and repeatability of sensory evaluation are often affected by factors such as the tea judge's personal psychology, physiology, and experience. Therefore, it is difficult to make the results of the review scientific and standardized. [0003] The electronic nose phase has the advantages of simple structure, convenient pre-treatment, high sensitivity, good repeatability, and rapid qualitative and quantitative analysis of samples. At present, commercial electronic noses on the mar...

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Problems solved by technology

[0002] As one of the important factors for evaluating tea types and grades, tea aroma is generally carried out through human sensory evaluation. However, the accuracy and repeatability of sensory evaluation are often affected by factors such as the personal psychology, physiology, and experience of tea judges. So it is difficult to make the results of the review scientific and standardized

[0003] The electronic nose phase has the advantages of simple structure, convenient pre-treatment, high sensitivity, good repeatability, and rapid qualitative and quantitative analysis of samples. At present, commercial electronic noses on the market at home and abroad can be used for various detection occasions. The sensor array of these electronic nose devices consists of many gas sensors, some of which are redundant for the detection of tea aroma, and the electronic nose array may also lack gas sensors sensitive to tea gas

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