Title: Optimization of impact parameters for reliable excitation of apples during firmness monitoring
Authors: Chen, Hq ×
De Baerdemaeker, Josse #
Issue Date: Aug-1995
Publisher: Academic press (london) ltd
Series Title: Journal of agricultural engineering research vol:61 issue:4 pages:275-282
Abstract: One of the promising techniques for non-destructive evaluation of fruit firmness is based on the resonant frequency of the fruit. To measure the resonant frequency, reliable excitation of the fruit is required to guarantee that the fruit vibrates at its resonant frequency, without suffering damage, In order to evaluate the impact signal for reliable excitation, a force model with hysteresis damping is used to calculate the impact force. For reliable impact excitation of the spherical mode of the apple, criteria are established regarding the energy distribution in the frequency domain and potential apple damage. Optimal excitation parameters of the impact hammer were determined and these include a mass of 10g, an initial contact velocity of 1.4 m/s, a flat contact surface and elasticity of the material of more than 40 MPa. (C) 1995 Silsoe Research Institute
ISSN: 0021-8634
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Mechatronics, Biostatistics and Sensors (MeBioS)
× corresponding author
# (joint) last author

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