Duck Eggshell Crack Detection by Nondestructive Sonic Measurement and Analysis

Duck eggs are a good source of essential nutrients for the human body. However, transportation, processing, and handling can easily cause cracks in the eggshells. These cracks can lead to microbial contamination, reducing the shelf life and compromising food safety. In this study, a method for the n...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2021-11, Vol.21 (21), p.7299
Main Authors: Lai, Chia-Chun, Li, Cheng-Han, Huang, Ko-Jung, Cheng, Ching-Wei
Format: Article
Language:English
Subjects:
Acoustic emission testing
Acoustics
Automation
Calibration
calibration curve
Communication
cracked eggshell
Cracks
duck eggs
Eggs
Microorganisms
Nondestructive testing
Nutrients
Prediction models
Probability
Regression analysis
Shelf life
Software
sound detection
Spectrum allocation
Statistical analysis
Variables
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Summary:Duck eggs are a good source of essential nutrients for the human body. However, transportation, processing, and handling can easily cause cracks in the eggshells. These cracks can lead to microbial contamination, reducing the shelf life and compromising food safety. In this study, a method for the nondestructive testing of cracks in duck eggshells was developed. First, the acoustic emission signals of intact and cracked eggshells were measured, and the most significant frequency features were selected to establish a calibration curve for cracked eggshells. Logistic regression using the frequency features was then adopted to predict intact and cracked eggshells. Then, we establish a set of optimal regression models and used independent samples for verification. The overall accuracy rates of the calibration and prediction models using five frequencies of bandwidth (1500, 5000, 6000, 8500, and 10,000 Hz) were 89.7% and 87.6%, respectively. Sound measurement enables a simple and quantitative method for duck egg crack detection and classification. This nondestructive and cost-effective method can be used for duck egg quality screening and can be integrated into duck egg processing machinery.
ISSN:1424-8220
1424-8220
DOI:10.3390/s21217299