Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
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Correlation Analysis between Ultrasonic Parameters and Elastic Modulus of Apple

  • Kim, Ghi-Seok (Department of Bio-industrial Machinery, Chungnam National University) ;
  • Kim, Ki-Bok (Safety Metrology Group, Korea Research Institute of Standard and Science) ;
  • Park, Jeong-Gil (Department of Bio-industrial Machinery, Chungnam National University) ;
  • Lee, Sang-Dae (Safety Metrology Group, Korea Research Institute of Standard and Science) ;
  • Jung, Hyun-Mo (Department of Packing, Kyongbuk College of Science) ;
  • Kim, Man-Soo (Department of Bio-industrial Machinery, Chungnam National University)
  • Published : 2008.06.30
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Abstract

The firmness of fruit is one of the most important quality factors and is highly correlated to the elastic modulus. In this study, the ultrasonic transmission method was applied to evaluate the elastic modulus of the apple. In order to transmit and receive the ultrasonic wave through the whole apple, the ultrasonic measurement setup consisted of ultrasonic pulser, two specially fabricated ultrasonic transducers for fruit and digital storage oscilloscope. Ultrasonic parameters such as ultrasonic wave velocity, apparent attenuation, and peak frequencies were analyzed. The elastic modulus of apple was measured by using compression test apparatus. The correlations between ultrasonic parameters and elastic modulus were analyzed. A multiple linear regression model describing the relationship between elastic modulus and ultrasonic parameters was proposed.

Keywords

References

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