Rapid nondestructive testing method for freshness based on air-flow pulse and laser ranging

Abstract

The invention relates to a rapid nondestructive testing method for freshness based on air-flow pulse and laser ranging. The rapid nondestructive testing method comprises the following steps: S1, acquisition of a sample and displacement information and formation of a displacement curve; S2, determination of freshness evaluation indexes; S3, extraction of six parameters from the displacement curve obtained in the S1; S4, fitting of the displacement curve obtained in the S1 by using a multivariate function so as to obtain six multivariate function fitting characteristic parameters; S5, establishment of three regression prediction models; and S6, comparison of the precision of the three regression prediction models so as to obtain an optimal freshness prediction model through which the predicted values of the freshness evaluation indexes of a to-be-tested livestock meat sample can be obtained. The rapid nondestructive testing method provided by the invention has the advantages of non-destructiveness, rapidness and no loss.

Description

technical field [0001] The invention relates to the field of non-destructive detection of poultry meat quality, in particular to a fast non-destructive detection method for freshness based on airflow pulse and laser ranging. Background technique [0002] The freshness of meat refers to the standard flavor, taste, color, texture and texture of a certain type of animal food. Freshness can comprehensively reflect product nutrition and food safety, so the study of meat freshness has important practical significance. [0003] At present, the detection technologies for the freshness of meat mainly include sensory detection and physical and chemical detection, etc. The sensory detection mainly refers to the color, viscosity, elasticity, etc. of the meat; To measure. Sensory testing is greatly influenced by review experts, and the results obtained by different reviewers are often difficult to agree; physical and chemical testing requires a series of equipment and devices to comple...

AI Technical Summary

Problems solved by technology

Sensory testing is greatly influenced by review experts, and the results obtained by different reviewers are often difficult to agree; physical and chemical testing requires a series of equipment and devices to complete, and there are problems such as cumbersome pre-treatment, complicated measurement process, and long measurement time. And the measured meat samples lose their subsequent use value, resulting in waste

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