The Study and Design on a Non-contact Detection System of the Corn Seed under Ground
Liu Hai-qinb · Journal of Agricultural Mechanization Research · 2008
At present, the way of certification on seeds evenness of precision drill is not only taking-time and laborious, but also can not reflect the working effect completely. Therefore, the paper introduced a non-contact detection system of the corn seed under ground based on the principle of electromagnetic induction. The design of circuit was elaborately presented including selection and design of coil; the design of excitation source and signal processing. It proved that detection effect of the system achieved the design specification.