One of the most common elements of discrete microfluidic used in control systems is a microfluidic generator. Determining the operating range of pressure, speed and frequency, the beginning and end of pulse generation, the gradient of speed and pressure of the working profile is important for the development of construction and finding ways to improve the design. For this purpose, a computer simulation of the working process in a microfluidic generator was completed to determine the main characteristics of microfluidic signals, frequency values in the power supply channel were completed at various pressures, and graphs of the dependence of the frequency in the power supply channel on the differential pressure were constructed.