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Development of a Novel Acoustic Spectroscopy Method for Detection of Eggshell Cracks

2021; Multidisciplinary Digital Publishing Institute; Volume: 26; Issue: 15 Linguagem: Inglês

10.3390/molecules26154693

1433-1373

István Kertész, Viktória Zsom-Muha, Rebeka András, Ferenc Horváth, Csaba Németh, József Felföldi,

Advanced Chemical Sensor Technologies

Non-destructive testing (NDT) for eggshell faults is highly important for the egg industry, as cracked eggs account for around 3% of total production. The most commonly used method at present, candling, is labor intensive, while computer vision systems are expensive and complicated. In this paper, we present a simple, yet efficient, novel method for eggshell crack detection by acoustic spectroscopy. Altogether, 693 sound recordings were evaluated by different classification methods. The results show a cross-validated 2.1% total classification error, with only 0.87% false positive rate, which is the crucial metric for fresh eggs. Adapting the developed method to an industrial setting may lead to a reliable, fast and cost-effective detection method.