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Detecting hollow heart of potato tubers using impact sound

, : Detecting hollow heart of potato tubers using impact sound. Arab Universities Journal Of Agricultural Sciences: 2, 285-292

An acoustical sorting system was developed to detect hollow heart (cavity) of potato tubers (Spunta variety). The system includes a microphone and digital signal processing hardware. It was found that upon impact with a steel plate, potato tubers with no hollow heart emit sound with higher signal magnitudes than with hollow one. Linear discriminate analysis was used to classify potato tubers using three features extracted from the microphone signal.


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