Title: Tomato firmness estimation using vibration measurements
Authors: De Ketelaere, Bart ×
De Baerdemaeker, Josse #
Issue Date: Jun-2001
Publisher: Elsevier science bv
Series Title: Mathematics and computers in simulation vol:56 issue:4-5 pages:385-394
Abstract: The use of tomato vibration analysis after impact excitation as a non-destructive physical quality measurement was investigated. For this purpose, an off-line test set-up was constructed that automatically impacts the tomato and captures the response. It is shown that the resonant frequency of the first elliptical mode of the tomato is related to its firmness. The exact location of the resonant frequency was obtained by first smoothing the spectra, and then taking the first derivative. It is shown that smoothing both increases the robustness of the estimates, and also lowers the number of erratic measurements. A comparison is made between measurements taken at the equator of the tomato and the bottom. Due to the non-homogeneity of a tomato, the measurements at the bottom were more reliable. (C) 2001 IMACS. Published by Elsevier Science B.V. All rights reserved.
ISSN: 0378-4754
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science