Detection of internal quality in seedless watermelon by acoustic impulse response

Diezma Iglesias, Belen and Ruiz-Altisent, Margarita and Barreiro Elorza, Pilar (2004). Detection of internal quality in seedless watermelon by acoustic impulse response. "Biosystems Engineering", v. 88 (n. 2); pp. 221-230. ISSN 1537-5110. https://doi.org/10.1016/j.biosystemseng.2004.03.007.

Description

Title: Detection of internal quality in seedless watermelon by acoustic impulse response
Author/s:
  • Diezma Iglesias, Belen
  • Ruiz-Altisent, Margarita
  • Barreiro Elorza, Pilar
Item Type: Article
Título de Revista/Publicación: Biosystems Engineering
Date: June 2004
ISSN: 1537-5110
Volume: 88
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Ingeniería Rural [hasta 2014]
UPM's Research Group: LPF-TAGRALIA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Recent commercialisation of seedless watermelon varieties relies on the guarantee of a high quality product. Several internal defects may deteriorate greatly this fruit: (a) creases and/or large voids in the flesh, (b) overripeness and (c) bruises due to impact. The objective of this research was to develop a feasible non-destructive procedure for detecting these defects in individual fruits, based on acoustic impulse response. A device consisting of a microphone, structural elements and a mechanical impact generator was designed and tested. Good and defective seedless watermelons were tested with the acoustic device. Spectral parameters were examined as potential non-destructive predictors of internal disorders. Waveband magnitude parameters, obtained by summing the magnitude of the spectrum between two frequencies in a specified band width (always including between 40 and 500 Hz), were the acoustic parameters showing the best ability to detect internal disorders.

More information

Item ID: 6136
DC Identifier: http://oa.upm.es/6136/
OAI Identifier: oai:oa.upm.es:6136
DOI: 10.1016/j.biosystemseng.2004.03.007
Official URL: http://www.sciencedirect.com/science/article/pii/S1537511004000467
Deposited by: Memoria Investigacion
Deposited on: 23 Feb 2011 08:55
Last Modified: 20 Apr 2016 15:27
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