Nondestructive Determination of the Maturity of the Durian Fruit in the Frequency Domain Using the Change in the Natural Frequency

Tanawut Tantisopharak, Hongsik Moon, Pannipa Youryon, Kanokpon Bunya-Athichart, Monai Krairiksh, Tapan Kumar Sarkar

Research output: Contribution to journalArticle

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This paper proposes a nondestructive technique to determine the stages of maturity of durian fruits. The presented methodology utilizes the electromagnetic scattering properties from the fruits over time for identification of the stage of maturity using its natural frequencies. Both simulation and experimental results show that the natural frequencies in the scattering responses change with the maturity of the durian fruit. Particularly, the change in the fundamental resonant frequency is used as a possible identification criterion for characterization of the stage of maturity. This is because the dielectric constant of the core of the fruit changes with its degree of maturity. In addition, the experimental results indicate that the variation of the dominant resonant frequency of durian fruits varies at different stages of maturity and this has the potential to be applied as a criterion to identify the stages of maturity.

Original languageEnglish (US)
Article number7416163
Pages (from-to)1779-1787
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Issue number5
StatePublished - May 1 2016



  • Cauchy method
  • Dielectric constant variation
  • Radar remote sensing

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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