An electrical stimulation device and method based on the difference frequency ultrasound and inverse magnetoacoustic coupling technology are disclosed. The device is provided with a power supply module for supplying power to an N pole electromagnet and an S pole electromagnet, a teslameter for detecting the magnetic field strength, first and second focused ultrasound transducers fixed on a sample, and an ultrasound pulse transmitter providing excitation signals for the two ultrasound transducers. The method includes the steps of placing and fixing a sample to be stimulated according to the direction of an electromagnetic field; fixing the two ultrasonic transducers on the head of the sample to be stimulated; applying magnetic fields to the sample to be stimulated; applying excitation ultrasonic signals by the ultrasonic pulse transmitter to the sample to be stimulated respectively through the two ultrasonic transducers; adjusting the focus positions of the two ultrasonic transducers; adjusting the ultrasonic propagation directions of the two ultrasonic transducers; and adjusting the excitation intensity of the two ultrasonic transducers and the magnitude of the applied magnetic fields. According to the invention, deep electrical stimulation of precise positioning can be realized, and a novel device and method for the scientific research of brain nerve functions in brain science are provided.
Electrical stimulation device and method based on difference frequency ultrasound and inverse magnetoacoustic coupling technology