Title :
Determining bulk density of granular materials from microwave measurements of their dielectric properties
Author :
Trabelsi, Samir ; Kraszewski, Andrzej W. ; Nelson, Stuart O.
Author_Institution :
U.S. Dept. of Agric., Agric. Res. Service, Athens, GA, USA
Abstract :
A dielectric method for determining bulk density of granular materials from measurement of their dielectric properties at microwave frequencies is presented. A complex-plane representation of the dielectric properties, normalized to bulk density, is used to generate calibration equations at 7 GHz for cereal grain and seed over wide ranges of moisture content and temperature
Keywords :
calibration; density measurement; dielectric measurement; granular materials; microwave measurement; 7 GHz; bulk density determination; calibration equations; cereal grain; complex-plane representation; dielectric method; dielectric properties; granular materials; microwave frequencies; microwave measurements; moisture content; seed; Calibration; Density measurement; Dielectric materials; Dielectric measurements; Equations; Frequency measurement; Microwave frequencies; Microwave measurements; Moisture; Temperature distribution;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.929529
