Open AccessA Review on Frequency Selection in Grain Moisture Content Detection
Author(s) -
Nurul Amira Mohd Ramli,
Mohd Hafiz Fazalul Rahiman,
Latifah Munirah Kamarudin,
Ammar Zakaria,
Latifah Mohamed
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/705/1/012002
Subject(s) - dielectric , permittivity , water content , dielectric permittivity , grain size , microwave , materials science , loss factor , moisture , environmental science , electronic engineering , computer science , composite material , telecommunications , optoelectronics , engineering , geotechnical engineering
A brief review on the dielectric properties of grain and their use in sensing moisture content is presented. Dielectric constant and loss factor were defined generally, and their correlation with grain permittivity from historical studies is presented. References are cited on dielectric measurement techniques using various frequency ranges from radio frequency through microwave frequencies. The described techniques including from the past decades until current studies.