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Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
Dielectric Relaxation Characteristics of Fresh
Fruits and Vegetables from 3 to 20 GHz [PDF] |
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AUTHORS |
W. Kuang and S.O.Nelson 1997 32 2 114-122 |
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Abstract The Debye equation and its derivatives were used to analyze experimental permittivity data of twenty-three kinds of fresh fruits and vegetables over the frequency range from 3 to 20 GHz. Cole-Cole plots and the ε' -vs.- ω ε’’ line were found useful in determining how well experimental data fit the Debye-type relaxation, whereas estimates of dielectric parameters provided by the ε' -vs.-ε/ω’’ line were subject to problems attributed to ionic conduction and sensititivty to measurement errors at the lower frequencies. Key Words: Dielectric properties, Permittivity, Dielectric relaxation, Fresh fruits, Fresh vegetables |
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