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Seed-Cotton Ultrasound Properties for Yield Measurement

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  011185,  2001 ASAE Annual Meeting. (doi: 10.13031/2013.3816) @2001
Authors:   Carlos Luz, S. D. Filip To
Keywords:   Ultrasonic transducer, acoustical properties, seed cotton

Two ultrasonic transducers were installed through cutout holes on opposite walls of a chamber. The materials under investigation (samples) were put between the transducers inside a sensing zone in three different elevations. Results of the experiment indicated that there were relationships between acoustical energy and mass of the material. This suggests that, within a limit, mass can be measured acoustically. The amount of acoustical energy attenuation is dependent on the position of the sample in the sensing zone. The accuracy of measurements can be improved if the variation in the position of the sample in the chamber can be minimized.

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