Influence of Paddy Varieties on the Measurement Accuracy of Capacitive Grain Moisture Meters

Capacitive grain moisture meters are widely used in grain trade settlements for rapid measurement of grain moisture and are among the measuring instruments under compulsory state management. The measurement accuracy of paddy moisture content using the capacitive method is influenced by various factors, including the variety of paddy. In this study, we investigate the effect of different paddy varieties on the measurement accuracy of capacitive grain moisture meters. The moisture content of seven different paddy varieties was measured using three capacitive grain moisture meters at two moisture levels, approximately 11.5% and 16.5%. The results indicate that paddy varieties significantly affect the measurement accuracy of capacitive grain moisture meters. Therefore, it is not advisable to use the same moisture meter to measure the moisture content of different paddy varieties without considering variety-specific calibrations.