Method and device for controlling jet breakup and liquid drop generation

The invention provides a method and a device for controlling jet breakup and liquid drop generation. Physical quantity disturbance with the same time domain characteristics as control signals is produced by specific control signal compilation based on a jet instability dominant mechanism to act on jet, the jet breakup process and the coalescence process of main liquid drops and satellite liquid drops are controlled, and controllable preparation of each liquid drop in a continuous liquid drop sequence is achieved. The device comprises a disturbance signal generator and a disturbance component,wherein the disturbance signal generator is used for setting or inputting dynamic disturbance signals with the characteristic of uneven distribution of fluctuation energy; the disturbance component isconnected with the disturbance signal generator to generate fluctuation with synchronous time domain characteristics and act on the continuous segment fluid jet in a non-contact manner, so that the size and distance of the si