Diffraction of a coaxial resonator’s hybrid modes by a transverse slot and a cylindrical dielectric layer

Kukharchik, P. D.; Titovitskii, I. A.

doi:10.1134/s1064226907070029

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“…It allows estimating σ by the measured value of the kernel average dielectric permittivity at different moisture levels. Experimental measurements were carried out for wheat grain using the resonator meter [8,20]. It was constructed on the basis of a coaxial resonator with an inner transverse ring slot and was intended for grain moisture content measurements.…”

Section: Phenomenon Of Dielectric Order In Kernelsmentioning

confidence: 99%

Effect of continuous modification of dielectric order in grain

Kukharchik

Titovitsky

Purovsky

2006

J. Phys. D: Appl. Phys.

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The notion of dielectric order of a multi-component disperse system is introduced and is bounded with the index of the power law of mixing for dielectric permittivities of different components in an electromagnetic field. Using the example of wheat grain under microwave radiation, we phenomenologically describe the effect of continuous modification of dielectric order in a disperse system as a result of its moisture alteration. It is supposed that this effect is conditioned by the known phenomenon of organization and expansion of spatially regulated water structure formations inside grain kernels when they absorb moisture. A new mixing law is established, being in good agreement with this effect. On its basis, a physically correct theory has been developed. It permits calculation of the grain dielectric permittivity over a wide range of moisture content and temperature variation.

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Section: Phenomenon Of Dielectric Order In Kernelsmentioning

confidence: 99%