Paper Title:
Wavelet Analysis of Ultrasonic Transmitted Signal of Apple during Storage Time
  Abstract

This study was conducted to analyze the ultrasonic transmitted signal for apple using wavelet transform. Fruit consists of non-linear visco-elastic properties such as flesh, an ovary and rind and hence most ultrasonic wave is attenuated and its frequency is shifted during passing the fruit. Thus it was not easy to evaluate the internal quality of the fruit using typical ultrasonic parameters such as wave velocity, attenuation, and frequency spectrum. The discrete wavelet transform was applied to the ultrasonic transmitted signal for apple. The magnitude of the first peak frequency of the wavelet basis from the ultrasonic transmitted signal showed a close correlation to the storage time of apple.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
1192-1195
DOI
10.4028/www.scientific.net/KEM.321-323.1192
Citation
K. B. Kim, M. S. Kim, H. M. Jung, S. D. Lee, J. G. Park, G. S. Kim, "Wavelet Analysis of Ultrasonic Transmitted Signal of Apple during Storage Time", Key Engineering Materials, Vols. 321-323, pp. 1192-1195, 2006
Online since
October 2006
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Price
$32.00
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