Title :
Measurement of grain and seed moisture and density through permittivity relationships
Author :
Nelson, Stuart O. ; Trabelsi, Samir
Author_Institution :
U. S. Dept. of Agric., Agric. Res. Service, Athens, GA, USA
Abstract :
The importance of moisture measurement in grain and seed is discussed, and a brief history of the development of moisture sensing instruments, based on sensing of dielectric properties of these materials, is presented. Data are presented graphically on the permittivities or dielectric properties of grain and seed showing their variation with frequency, moisture content, temperature, and bulk density, and references are cited for further information. More recent developments on microwave measurements for moisture content and bulk density sensing are briefly described, and numerous studies are cited providing sources of information on these promising techniques.
Keywords :
agricultural products; density measurement; dielectric properties; moisture measurement; permittivity measurement; bulk density; density measurement; dielectric properties; grain; moisture content; moisture measurement; permittivity relationships; seed; Density measurement; Dielectric materials; Dielectric measurements; Frequency; History; Instruments; Microwave theory and techniques; Moisture measurement; Permittivity measurement; Temperature sensors; bulk density; dielectric constant; grain; loss factor; microwave measurements; moisture; permittivity; seed;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2010 IEEE
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-2832-8
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2010.5488298