Quickly non-demage discriminating method and device for marked wine year of bottled yellow rice or millet wine

Abstract

The invention discloses bottle yellow wine labeling wine storage time fast undamaged identifying method and device. The method includes the following steps: collecting sample bottom near infrared spectrum as background spectrum; deducting the background spectrum from the original sample spectrum to as actual sample spectrum; using main component analyzing method to calculate out sample characteristic spectrum vector and its center with same storage time; counting out characteristic spectrum center Mahalanobis distance of the measured sample and storage time sample; classifying it to the sample series with the minimum storage time to judge whether it is qualified or not. The invention can reduce amount of calculation, conveniently, fast and harmlessly identify yellow wine labeling storage time, and has high identifying correct rate.

Description

technical field [0001] The invention relates to a method and device for rapid and non-destructive identification of bottled yellow rice wine marked wine age by using near-infrared spectrum analysis technology. Background technique [0002] The wine age of rice wine refers to the aging year of the wine, and it has become a common way in the rice wine industry to indicate the quality of the wine with the wine age. The national standard "Yellow Wine" (GB / T 13662-2000) clearly defines the "wine age" and "marked wine age" of rice wine. "Wine age" refers to the number of years for the fermented finished raw wine to be stored in wine jars, wine tanks and other containers; "labeled wine age" refers to the age of the wine marked on the sales package label, which is calculated as the weighted average of the wine age of the blended wine. Yellow rice wine with a wine age of 3 years (or more than 3 years) should be based on high-grade wine (in the national standard "Yellow Wine", rice w...

AI Technical Summary

Problems solved by technology

The advantage of these methods is that they have been generally accepted as conventional instrumental analysis methods, but the disadvantages are that they require a complicated process of making test samples, the analysis period is long, the cost is high, and the efficiency is low, and all of them require destructive treatment of the samples to be tested.

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