Open AccessDielectric properties of sorghum seeds (Sorghum bicolour) in the radio frequency range
Author(s) -
Ashikur Rahman,
J. P. Shukla
Publication year - 2021
Publication title -
journal of agrisearch
Language(s) - English
Resource type - Journals
eISSN - 2348-8867
pISSN - 2348-8808
DOI - 10.21921/jas.v8i04.7756
Subject(s) - dielectric , materials science , sorghum , moisture , water content , range (aeronautics) , loss factor , radio frequency , composite material , electrical engineering , optoelectronics , agronomy , engineering , geotechnical engineering , biology
The dielectric parameters of hygroscopic materials such as seeds and grains vary greatly when subjected to varying electric field. The values of dielectric parameters such as dielectric constant, dielectric loss factor and other related parameters along with dielectric relaxation spectrum has tremendous application in in processing industries, as it helps in determine online and instantaneous moisture content of seed lots during harvesting, processing, handling and transportation and in controlled heating without quality damage. For these operations the effect of frequency moisture and temperature of the material over wide frequency range is required. This paper presents the dielectric properties of sorghum seed (Sorghum bicolour) over the radio frequency range of 0.50 kHz to 10 MHz, determined by Hewlett-Packard (HP-4194A) impedance/gain phase analyzer over the moisture range of 2.9% to 18.5% with corresponding bulk density and temperature range of 0.812-0.760 gm/ cm3 and 30-45oC , respectively.