Model development and simulation of variable rate of pressure spray

Changing spray rate in terms of the variation of spray targets and machine speed may effectively save pesticide and reduce environment pollution. Variable spray rate system will be the important tendence of pesticide application in the future. On the basis of designing a variable spray rate system, this paper developed the system control model and the system transfer function. The model was simulated successfully with the MATLAB platform. The result showed an expected effect of controlling the spray rate of the system.