Propriedades dielétricas do trigo (Triticum aestivum L.) no intervalo de 1 kHz a 1 MHz.

Abstract

This work reports measurements of dielectric properties of hard winter wheat in the frequency range from 1 kHz to 1 MHz, and an effort is made to derive a bulk-density independent function for the determination of moisture content in the range from about 11% to 20% w.b. Values of the dielectric constant varied from 80 (for a sample with 19.8% moisture at 1 kHz) to 3.5 (for a sample with 10.7% moisture at 1 MHz). For similar values of moisture content and frequency, values of the dielectric loss factor varied within the range 0.26 ≤ Ɛ" ≤ 117.09.