An estimation of firmness for solid ellipsoidal fruits

F. Ouyang, L. Blot, Reyer Zwiggelaar, A. -. P. Cherng

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This paper deals with a non-destructive firmness estimation method using vibrational characteristics for solid fruits of oblate ellipsoidal shape. In association with the previous work, a general estimation formula is proposed, which is suitable for both prolate and oblate solid ellipsoids. The applicable range of the new firmness index is at least between axis ratio of 0·4 and 2·0 from finite element simulations.
Original languageEnglish
Pages (from-to)257-259
Number of pages3
JournalBiosystems Engineering
Issue number2
Publication statusPublished - 2005


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