Quality assessment of apples based on modal analysis using laser-induced plasma shock wave

M. Mishima, Naoki Hosoya, I. Kajiwara, Shingo Maeda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-quality fruits classified by ripeness of the fruits in a quantitative way are important for farm producers and customers. Therefore, many ripeness assessment methods, which are biochemical methods, physical methods, and optical methods, have been studied by researchers. The ripeness assessment techniques of fruits based on vibration tests have more potential because the techniques are based on nondestructive test. The ripeness of fruits is assessed by measuring natural frequencies of fruits in vibration tests, since firmness decline of fruits can be used to assess a ripeness of the fruits by past studies. In general, an impulse hammer and a shaker as contact-type excitation equipment are used in vibration tests for assessing ripeness of fruits. However, when target fruits are soft and small-sized as well as lightweight such as a grape, the implements with contact might not be used to assess the ripeness. In this paper, we measure natural frequencies of fruits in vibration tests using a shock wave generated by laser-induced plasma.

Original languageEnglish
Title of host publicationProceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics
PublisherKU Leuven, Departement Werktuigkunde
Pages2279-2286
Number of pages8
ISBN (Electronic)9789073802940
Publication statusPublished - 2016
Event27th International Conference on Noise and Vibration Engineering, ISMA 2016 and International Conference on Uncertainty in Structural Dynamics, USD2016 - Leuven, Belgium
Duration: 2016 Sep 192016 Sep 21

Other

Other27th International Conference on Noise and Vibration Engineering, ISMA 2016 and International Conference on Uncertainty in Structural Dynamics, USD2016
CountryBelgium
CityLeuven
Period16/9/1916/9/21

    Fingerprint

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Acoustics and Ultrasonics

Cite this

Mishima, M., Hosoya, N., Kajiwara, I., & Maeda, S. (2016). Quality assessment of apples based on modal analysis using laser-induced plasma shock wave. In Proceedings of ISMA 2016 - International Conference on Noise and Vibration Engineering and USD2016 - International Conference on Uncertainty in Structural Dynamics (pp. 2279-2286). KU Leuven, Departement Werktuigkunde.