Abstract
The visual inspection by persons of the eggshell integrity is an important bottleneck in the automation of egg grading machines. The inspection rate is slow and manual inspection is subjective. This research forms a basis for a new crack detection system. Based on the results of experimental modal tests on chicken eggs a novel eggshell crack detector is designed. An egg is subjected to a light impact excitation. The acoustically measured frequency response spectrum is used as input in a classification algorithm. Improving accuracy can be achieved using multiple measurements per egg.
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