Online Measuring Of Grain Flowrates and Its Measurement Sensitivities with Pitch and Roll Angles

Reni Eka Putri (Andalas University)
Azmi Yahya
Nor Maria Adam
Samsuzana Abd Aziz

Andalasian International Journal of Agricultural and Natural Sciences
Vol. 2 No. 02 (2021)

A complete calibration test stand was constructed and instrumented to examine the effect of varying pitch and roll positions on the measurement errors of a microwave solid type flow sensor. Results indicated that measurement errors ranging from 2.50% to 6.82% and 1.80% to 8.86% were obtained by the changing of chute pitch (descending and ascending) and roll angle positions from 1.5° to 4.5°, respectively. Greater measurement errors were found at the low screw auger conveyor speed range. However, the magnitude of errors is within the acceptable margin for any typical wet paddy land topography.