Intelligent electronic nose system based device and method for analyzing freshness of pear
An analysis device and freshness technology, applied in the field of pear freshness analysis device based on intelligent electronic nose system, can solve the problems of harmfulness to human body and ineffective detection of pear quality
Inactive Publication Date: 2014-01-15
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology
[0005] The present invention mainly solves the existing technical problems that there is no effective device and method for detecting the quality of pears, and the volatile gas of the beverage sample is detected by the human body's own organs, there are subjective differences, and it is harmful to the human body. Pear freshness analysis device and method of electronic nose system
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Embodiment
[0063] In this embodiment, a pear freshness analysis device based on an intelligent electronic nose system, such as figure 1 , figure 2 As shown, it includes a gas collection unit 1 , a gas collection unit 28 , a processing unit 26 for processing detection data, and a control unit 27 for controlling execution operations.
[0064] The gas collection unit 1 includes four parts: an air chamber 2, a sample chamber 3, a first communication pipe 4 and a second communication pipe 4. The air chamber and the sample chamber all have an inlet and an outlet, and the first communication pipe is connected between the outlet of the air chamber and the second communication pipe 4. Between the inlets of the sample chambers, the second communication pipe is connected between the outlets of the sample chambers and the inlets of the gas chambers, which constitutes a loop-shaped circulation channel structure. A sample is placed in the sample chamber, and the sample is placed in a pear sample in ...
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The invention relates to an Intelligent electronic nose system based device and method for analyzing freshness of pears, and solves the technical problems of subjective differences and harm to human body in the existing detection on volatile gas of a sample by human organs. The device comprises a gas gathering unit, a gas recovery unit, a processing unit and a control unit. The gas gathering unit comprises a gas chamber, a sample chamber, a first communicating pipe and a second communicating pipe, which constitute a return type circulation path. The gas recovery unit is connected to the gas chamber; the processing unit is connected with the gas recovery unit; and an air inlet mechanism, an air outlet solenoid valve and a collection unit are respectively connected with the control unit. The invention has the advantages that the electronic nose system realizes more comprehensive and objective test results and also avoids harm of the sample gas to human health; and the gas is circulating during gas recovery, so that the gas is more uniformly mixed and the detection data is more accurate.
Description
technical field [0001] The invention relates to a technology for detecting fruit quality, in particular to a pear freshness analysis device based on an intelligent electronic nose system, and a pear freshness analysis method based on an intelligent electronic nose system. Background technique [0002] Most pear varieties have many problems in storage. For example, the storage period of avocado is short, and the fruit will appear browning and other symptoms of poor quality in 1-2 weeks after harvesting; Corruption. There are few domestic studies on postharvest storage and transportation storage of pear fruit, and the storage problem has not been resolved. [0003] For a long time, people have judged the quality of fruits through their own senses, and this judgment is often highly subjective, and the results of evaluation and analysis often vary with age, experience, etc., and there are considerable individual differences. Even the same person can get different results due t...
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IPC IPC(8): G01N27/00
Inventor 惠国华马美娟李晨迪詹玉丽周于人杜桂苏王南露周瑶顾佳璐李曼邵拓许晓岚黄洁王敏敏蔡艳芳
Owner ZHEJIANG GONGSHANG UNIVERSITY