Dielectric behaviour of pulverized mungbean at microwave frequencies
DOI:
https://doi.org/10.53550/jfl.v18i2.2385Keywords:
Mungbean, Microwave technique, Dielectric constant, Dielectric lossAbstract
Values of dielectric constant (E'), dielectric loss (E"), relaxation time (T) and conductivity (6) of pulverized samples of mungbean were measured for different packing densities at 9.84 GHz microwave frequency and at different temperatures (23-53°C). Experimental results on powders of different packing fractions (8) were used to obtain transformation to 100% solid bulk using correlation formulae of Landau-Lifshitz-Looyenga and Bottcher. There was a fair agreement between the calculated values of dielectric parameters and the values obtained experimentally for solid bulk. This shows cohesion in the particles of mungbean powders under investigation.
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