Experimental Research of Grain Mass Flow Condition Monitoring System

Data acquisition in fields, especially yield data acquisition, is an important step in precision agriculture.To obtain the yield information, a grain mass flow condition monitoring system is developed. which consists of impulse-type grain mass flow sensor, grain mass flow condition monitor, CPR transmitter and power supply component. The grain mass flow condition monitor collects data from grain mass flow sensor;displays and stores them after processing. On the basis of test rig experiments with wheat, wheat field experiments are finished in June 2010 .The experimental results show that the accuracy of this monitor syterm is within 3% in test rig experiments and within 5% in field experiments while the grain flow rate is 0~ 2 .5kg / s, which met the precision agriculture production accuracy.