Abstract
Dielectric constant (ε’). Loss tangent (tan ), loss factor (ε’) and conductivity ( ) have been measured for five kinds of oilseeds namely groundnut, sesame, linseed, rapeseed (yellow sarson) and Indian rape (toria) at various moisture contents of these materials over the temperature range of 15o 45 o C and at 10 GHz. Both the dielectric constant and the loss factor were found to increase with moisture content for all the oilseeds under investigation, Positive temperature coefficients were observed for e'. While both positive and negative temperature coefficients were recorded for ε’, depending on moisture content and temperature range. Conductivity also exhibited similar trend, while loss tangent did not show any specific trend.
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