Adding vibrationg signals in the direction of the variation of the control signal, overcome the friction of the proportional valve and the cylinder. 在控制信号变化的方向上叠加颤振信号，克服了比例阀和气缸的静态摩擦力。
System simulation is carried out, and the simulation results show that the control method used for the deadband compensation of the proportional valve is correct and feasible. 并通过系统仿真研究，证明该控制方法用于气动比例阀死区补偿的正确性和有效性。
