ASABE Technical Library - Abstract

Click on “Download PDF” for the PDF version or on the title for the HTML version.
If you are not an ASABE member or if your employer has not arranged for access to the full-text, view access and subscription options

Mathematical Models for the Dielectric Constants of Spring Barley and Oats

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

Citation:  Transactions of the ASAE. 29(2): 607-610. (doi: 10.13031/2013.30198) @1986
Authors:   Stuart O. Nelson
Keywords:   

ABSTRACT THE dielectric properties of grain samples representing five spring barley cultivars and four spring oats cultivars were measured at 24 C over moisture content ranges from 8 to 25%, wet basis, and at frequencies of 20, 300 and 2,450 MHz at known bulk densities. Mean values of the dielectric constants, over the cultivars for each kind of grain, at each frequency and moisture level, along with mean values for moisture content and bulk density of the grain samples, were used in the development of models that predict the dielectric constants as a function of frequency, moisture content, and bulk density. The new models estimated the dielectric constants of both barley and oats with an average error of about 4% compared to the mean measured values over the 8 to 25% moisture range at the specified frequencies.

(Download PDF)    (Export to EndNotes)