Title :
Dielectric Spectroscopy of Honeydew Melons for Quality Sensing
Author :
Nelson, Stuart O. ; Trabelsi, Samir ; Kays, Stanley J.
Author_Institution :
U. S. Dept. of Agric., Russell Res. Center, Athens, GA
Abstract :
Permittivities of tissue samples from 38 melons were measured at 25 degC over the frequency range from 10 MHz to 1.8 GHz along with refractometer determinations of soluble solids content (SSC), and tissue density and moisture content. A high correlation (r = 0.96) was found between SSC and the permittivity as expressed in a complex-plane plot of the two components of the relative complex permittivity, each divided by SSC. Through this mathematical relationship, SSC can be calculated from measured permittivity values independent of tissue density, moisture content, and most likely independent of temperature as well
Keywords :
UHF measurement; agricultural products; moisture measurement; permittivity measurement; refractometers; 0.01 to 1.8 GHz; 25 C; dielectric spectroscopy; honeydew melons; moisture content; permittivity measurement; quality sensing; refractometer determinations; relative complex permittivity; soluble solids content; tissue density; Density measurement; Dielectric constant; Dielectric loss measurement; Dielectric measurements; Electrochemical impedance spectroscopy; Frequency measurement; Moisture measurement; Permittivity measurement; Probes; Solids; Dielectric spectroscopy; dielectric constant; loss factor; melons; permittivity; quality sensing;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328365
