Title :
Microwave moisture sensor for rapid and nondestructive grading of peanuts
Author :
Trabelsi, Samir ; Nelson, Stuart O.
Author_Institution :
U. S. Dept. of Agric., Agric. Res. Service, Athens, GA, USA
Abstract :
A low-cost microwave moisture sensor operating at a single frequency for instantaneous and nondestructive determination of moisture content in peanut kernels from microwave dielectric measurements on peanut pods was developed and tested. The sensor operates at a frequency of 5.8 GHz and uses the principle of free-space transmission measurement of the dielectric properties. Moisture content is determined independent of bulk density with a permittivity-based algorithm.
Keywords :
dielectric properties; microwave detectors; moisture measurement; nondestructive testing; dielectric properties; free-space transmission measurement; microwave dielectric measurements; microwave moisture sensor; peanut nondestructive grading; permittivity-based algorithm; Antenna measurements; Attenuation; Dielectric materials; Dielectric measurements; Kernel; Microwave devices; Microwave measurements; Microwave sensors; Moisture; Permittivity measurement;
Conference_Titel :
IEEE SoutheastCon 2010 (SoutheastCon), Proceedings of the
Conference_Location :
Concord, NC
Print_ISBN :
978-1-4244-5854-7
DOI :
10.1109/SECON.2010.5453815
