Non-destructive detection method for egg freshness by using electromagnetic wave resonant cavity

Abstract

The invention discloses an egg quality lossless detecting method of electromagnetic wave technique, which comprises the following parts: metal resonance cavity, weight sensor, conveying belt and computer. The method comprises the following steps: (1) putting the egg with different filling weighs and freshness in the metal resonance cavity; measuring the ªñf and attenuation of electromagnetic signal; storing the list in the computer to finish the scaling and calibration course; (2) reading the ªñf, attenuation of electromagnetic signal and temperature from the computer when the egg enters into the resonance cavity; obtaining the disposed egg freshness on the conveying belt through checking the graph.

Description

technical field [0001] The invention relates to the application of electromagnetic wave technology in non-destructive detection of poultry egg quality. Background technique [0002] At present, sensory and physical methods are mostly used in the trade network to identify and grade the quality of eggs. As long as the eggs are not inferior eggs, they can be put on the market. For a small number of rural chicken farmers, this method can be used to roughly identify and grade eggs; but for mass production, these methods are labor-intensive, have low grading accuracy, and the test results lack objectivity. [0003] Recently, several methods for non-destructive testing of egg quality have been reported. Acoustic impact method: the principle is to detect the cracks of eggs by performing spectrum analysis on the sound pulse vibration generated by knocking eggs. The detection accuracy of good shell eggs is 85%. The disadvantage of this method is that it can only detect good shell egg...

AI Technical Summary

Problems solved by technology

However, this method is complicated, and the electromagnetic spectrum characteristics cannot be obtained by heating eggs

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