Summary
It has been reported that paddy moisture can be measured using high frequency coil because coil inductance varies with paddy moisture content. In this paper, the effect of bulk density of paddy was investigated. A multiple regression equation was proposed to express the relation among coil inductance, bulk density of paddy and moisture content.HomePage
Experiments indicated that the coil inductance increased 0.043mH with the bulk density of sieved paddy(moisture content 28.4%) varying from 0.55 g/cm3 to 0.73 g/cm3. The bulk density of paddy showed stronger effect with the increasing paddy moisture content. At the specified frequency of 1MHz, the proposed model can fit the measured inductance with an average error of about 0.0015 for the moisture content ranging from 15.5% to 28.4%.Keywords: moisture measure, coil, inductance, high A.equency, bulk density