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Abstract

Vibration is one of the techniques employed in the determination of dynamic properties of fruits and vegetables. It entails generation of a mechanical or acoustic vibrational signal which is propagated through the flesh of the agricultural material. A transducer is either attached or held close to the specimen to monitor the propagation of the signal through the specimen. The manner in which the signal is transmitted through the material is analyzed, and the dynamic properties of the specimen which relate to its firmness or its internal being are derived. The technique has been around for the past 30 years or so.

This paper examines the evolvement in the use of the vibrational technique in determination of dynamic properties of agricultural materials (especially fruits and vegetables), and critically discusses the successes and failures of the technique over the past three decades. It points out and discusses the advantages associated with the technique vis-a-vis other testing techniques.

Publisher Name

University of Dar es Salaam

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