The working principle of music fountain is to control the water column according to the music played, so as to achieve the effect of synchronization with the music. The water column is controlled by a water pump, which consists of a three-phase asynchronous motor. If the speed of three-phase asynchronous motor is connected to the power frequency power supply, the speed will not change. Frequency converter is a device specially designed for motor speed regulation. The speed of the motor is controlled by the frequency converter, which changes the water column.

Changing the frequency changes the speed of the motor, which also changes the pressure of the water pump. The different frequencies of music are sent to the control end of the variable frequency motor through single chip microcomputer processing, so that the rotation speed of the motor changes with the tone, rhythm and strength of the music, and the pressure of the water pump changes accordingly, so that the sprayed water changes in height. Several sets of equipment control multiple groups of nozzles.

Fountains are formed by water pumps.

Convert the rhythm and intensity of music into control signals, and then control a voltage control device. After the power supply passes through this voltage control device, the output voltage also changes with the music, thus controlling the water pump motor.